The tablets were already available in the U.K., Germany, France, Italy, Spain and Japan (as well as the U.S., of course). While a 4G version of the Kindle Fire HD 8.9″ is available in the U.S., only Wi-Fi versions are available internationally.

“Kindle Fire HD is the #1 best-selling item in the world for Amazon since its launch, and we’re thrilled to make it available to even more customers around the globe today,” Dave Limp, VP Kindle, said in a statement.

In the U.S., the 8.9-inch Kindle Fire HD, which is Amazon’s answer to the iPad, got a big price cut in March. The 4G, 32 GB version, which had been $499, was cut to $399. The Wi-Fi-only version of the same tablet got a price cut of $30 — to $269 for the 16 GB version and $299 for the 32 GB version. Internationally, prices will vary based on operating costs.

Zite outlined the changes in a blog post. CEO Mark Johnson has been pretty vocal about how he doesn’t think Zite should be like Google Reader, and told me the new features Zite has added to its iOS app are those that “enhance the user experience both for Google Reader users and the reading population in general.” Articles will now “gray out” after they’ve been read, users will be able to save sources as favorites and Zite’s algorithm will pay more attention to obscure content:

“One of the biggest problems with Google Reader is that RSS feeds which publish many stories per day tend to dominate your feed, so the obscure blog you found a few years ago that publishes every three months can be drowned out in the noise. Zite’s algorithm will more aggressively highlight rare content, so feel free to ‘like’ publishers that you enjoy, no matter how popular or rare.”

An Android update is coming soon.

Zite’s also added seven new publishers to its publisher program, bringing the total number of publishers it works with to 24. The new publishers are GigaOM, Atlantic Media (with The Atlantic and Quartz), Business Insider, Fast Company, Salon, Say Media (Remodelista and ReadWrite) and Serious Eats, and they join existing publishers like CNN (Zite’s parent company), the Huffington Post, and the Chicago Tribune. Zite publisher partners share their “best-of” content in their own sections of Zite’s app, and can run their own ads against their content.

“We are also starting to look at ways to monetize publisher content,” Johnson said. That’s something Zite’s competitors are already doing: The New York Times makes content available to paying subscribers through Flipboard, and the Wall Street Journal has a similar arrangement with Pulse.

Here’s a video of Johnson speaking about the future of content personalization at paidContent 2013:

Now MySiteApp, the Israeli company that previously put out the UppSite tool for converting websites into native apps, has brought out a new service called Brow.si for making mobile websites behave like apps. Brow.si is a multifunctional toolbar that can be easily inserted in a responsive website through the addition of some Javascript. It’s now in public beta, following a two-week closed beta period in which it was already used by a million people.

Pushing for the web

Much of this functionality is the sort of thing a publisher can put into a mobile website itself – content sharing through social networks, read-later options such as Pocket, font resizing and so on – but Brow.si aims to make its addition easier.

It also introduces something that’s previously only been available on apps: push notifications. Without the user having to install anything, they can subscribe to notifications from all the websites they visit that are using Brow.si, and consume that content through the platform’s own reader. Again, users don’t have to create an account for this – they just need to log into a social network (Facebook, Twitter or LinkedIn) for sharing purposes, after which Brow.si will know which user is which.

What’s more, MySiteApp has become a WordPress VIP (see disclosure) feature partner, meaning sites using that publishing platform can easily install the Brow.si plugin. But again, that’s not all: as alluded to above, Brow.si is a platform in its own right, and it aims to help publishers monetize their content.

Cashing in

As MySiteApp CEO Gal Brill explained to me, publishers can add so-called “mini applications” that will only show up when the user activates the Brow.si toolbar. When the toolbar is swiped across the screen, it introduces new real estate below it, so the publisher could for example add a mini-app for the content recommendation engine Taboola, or they could even use this new space for traditional ads.

Mini-apps will be made available through Brow.si’s marketplace, and the company has an open API so third-party developers can help populate that marketplace with their own efforts.

It’s all very clever, and the simplicity of installation should give Brow.si a flying start. It remains to be seen, though, whether this sort of functionality will help publishers monetize their content on the mobile web. There are many variables at play here, from users’ desire for content-related push notifications (granularity seems to be lacking) to publishers’ desire for differentiated presentation.

That said, the addition of a new and relatively unobtrusive patch of mobile screen real estate for advertising purposes could turn out to be a welcome development.

Disclosure: Automattic, maker of WordPress.com, is backed by True Ventures, a venture capital firm that is an investor in the parent company of this blog, GigaOm. Om Malik, founder of GigaOm, is also a venture partner at True.

Flickr is getting three big updates. All users will get 1 terabyte of photo storage for free. The site’s interface is also being redesigned to focus on full-resolution photos — both in photo browsing and in search — rather than words and links. Users will be able to share the full-resolution photos by email, Facebook, Twitter, Pinterest and Tumblr. And, in addition to the iOS app Flickr launched last December, Yahoo is launching an Android app.

Flickr Pro, which had allowed users to pay for more storage space, is going away. “There’s no such thing as Flickr Pro today because [with so many people taking photographs] there’s really no such thing as professional photographers anymore,” Mayer said (though she acknowledged that there are “different skill levels”). There are still a couple of paid options: Users can pay $49.99 a year for an ad-free interface, and can add a second terabyte of data for $499.99 per year. It’s unclear what will happen with existing Flickr Pro memberships that users have already paid for.

On an investor call on Monday morning, Mayer had noted that there are “obvious synergies between Flickr and Tumblr,” but that it’s too early to say what those opportunities will be.

The choice of location for the press conference — a hotel in Times Square — became clear as Mayer announced that Yahoo has taken out a lease for office space at 229 West 43rd Street — the old New York Times building — and will be moving all 500 of its New York-based employees there. Tumblr’s employees, however, will stay downtown at their Union Square office.

New York City mayor Michael Bloomberg took the stage to say the move reflects “what a big player New York has become in the tech industry,” with Yahoo becoming “one of the largest tech presences in the city.” He noted that Tumblr is a “New York-grown company” and that NYC was the first city government to have its own Tumblr.

“Twenty years ago, if you looked out the window, there were plenty of yahoos in Times Square,” he said. “Now the Yahoos here will make an honest living … and help us grow and make our economy stronger.”

Let’s be positive

Every story I read about Google is us versus some other company or some stupid thing. Being negative is not how we make progress. The most important things are not zero sum.

Except Microsoft is not playing ball

The Web is not advancing as fast as it should be. Certainly, we struggle with companies like Microsoft. We would like to see more open standards and more people involved in those ecosystems. I wouldn’t grade the industry well with where we have gotten to.

And that other Larry is just greedy

We’ve had a difficult relationship with Oracle, including having to appear in court. Money is obviously more important to them than any collaboration.”

Google has been fighting with Microsoft for a while and well, Oracle is a tough adversary, especially when it comes to Java.

While I am complete agreement with Page’s general sentiment about opportunities and the importance of being positive, I think Larry (and all other technology industry leaders) should actually practice what they preach if they want others to follow.

Content providers could do this through direct payments to carriers, Stephenson said, but according to Fierce, he also said they could subsidize data costs through some kind of advertising revenue share. The end result, though, would be the same: content providers who pay would see their traffic exempted from customers’ mobile data caps.

Randall Stephenson

Stephenson comments come a week after reports that arch-competitor Verizon Wireless is in discussions with ESPN for just such a toll-free data deal. What seemed like a crazy suggestion from AT&T and other carriers last year, now looks like it might become reality. But is it a reality we really want?

A content provider-subsidized internet would be appealing to many consumers, especially those on AT&T and Verizon since carriers have hunted the unlimited data plan to the point of extinction. Imagine streaming Netflix movies and ESPN games to your heart’s content without ever worrying about exceeding your data cap or incurring overage fees.

But as I pointed out last week there could be some major unintended — or if carriers are being really cynical, intended — consequences to adopting these kinds of subsidy models. Legally mobile operators aren’t subject to the same net neutrality guidelines as the wireline broadband providers, but if mobile carriers created two separate classes of mobile data traffic they could upset the delicate balance that makes the mobile internet the mobile internet:

… there are enormous consequences to such a deal. The biggest and most obvious consequence is that it favors one provider’s content over another. If all access is created equal, then no content has an inherent advantage over another — which is the whole idea behind the wireline network neutrality rules the FCC established in 2010. But if consumers know they can get ESPN’s content without incurring any additional charge, they’ll naturally gravitate toward that content.

There’s an even bigger risk that ESPN’s competitors won’t just get penalized in the eyes of the consumer. Their traffic flow could be penalized as well. Embedded deep within Verizon’s network are policy servers that can distinguish an ESPN packet from any other packet. Not only could Verizon use that technology to exempt ESPN traffic form data plans, it also could use that technology to prioritize ESPN’s traffic from all others. The  [Wall Street] Journal’s story didn’t mention anything about traffic shaping, but you can bet its high on the list in any negotiation.

What’s particularly noteworthy about Stephenson’s comments, though, is the mention of using advertising as a former of subsidy currency. Stephenson could just be talking about inserting carrier-generated advertising into their app ad engines as compensation for their free ride on the network. But the other implication is that AT&T wants a true revenue share, taking a cut off the top of any revenue generated from YouTube ads or any Netflix subscription used on mobile.

This is an old idea the mobile industry first proposed way before the advent of the smartphone – in an age when the mobile internet was still a walled garden and carriers its gatekeepers. The idea was that operators would become equal partners with content providers, and that’s a scary proposition. I doubt that content providers want to give the gate keys back to the carriers.

Take a look back at our live coverage of Google’s flagship conference, which started at 9am PT Wednesday. We’re not expecting as major a news event as we have in past years, but there will be no shortage of updates to the company’s plans for Android, Chrome, YouTube, and its cloud-computing services. We’ll have a full contingent of GigaOM reporters at the show bringing you updates both here and throughout the course of the day, so stay tuned.

So far, Google has announced:

• 900 million Android activations
• Three new Google Maps location APIs
• Synced Google Cloud Messaging accounts, which will let you sync notifications across devices.
• New Google Play Game Services features that can do multiplayer gaming through Google+
• Android Studio, a new development environment for Android app developers.
• A new design for the Google Play app store that highlights tablet apps.
• Google Play Music All Access, a subscription music service.
• A new educational initiative involving Android tablets and apps for education.
• Sweeping updates to Google+, including a new stream design.
• Conversational search within Chrome.
• Big changes to Google Maps.

While it might not feature anything as crazy as last year’s Google Glass-streamed skydive over downtown San Francisco, if you love (or love to hate) Google’s world, here’s what you can expect this week. We’ll update this post as new stories are posted.

Day 3:

• The GigaOM Show: Google I/O themes and takeways that affect you
• The future, according to Google
• Some of the best articles you need to read about Google I/O
• A sneak peek at YouTube’s future as it rolls out new channel design for everyone
• Redbox Instant is coming to Google TV soon, Roku up next

Day 2:

• So Google Compute Engine is out, your move Amazon
• Google, NASA quantum computing project could bring stronger machine learning to the masses
• SMS integration coming to Google Hangouts. Will Google Voice follow?
• Google CEO Larry Page: Do as I say, not as I do
• How Google Music wants to take on Spotify, Rdio and Rhapsody
• Google jumpstarts Glass development with apps form Twitter, Facebook and Evernote
• What do good shoes, Google+ and Facebook have in common?
• How Google cleverly improved Android without releasing Android 4.3 at Google I/O
• The road less traveled: How Google does Streetview for the world’s oceans
• Why Google thinks the GPU is the engine for the web of the future

Day 1:

• Live blog: Google I/O 2013 showcases Android, Chrome, YouTube and more
• Google I/O statshot: 900 million Android devices activated
• Google Apps set for a communication upgrade with deeper Google+ integration
• Google officially launches its music subscription service at Google I/O
• Google turns up location data usage on Android apps
• What Google was thinking when redesigning the new Google+
• Prepaid gives Google a huge Android boost (and Apple has noticed)
• Eight years later, Google reinvents its Maps for a data rich web
• Coming to a school near you: Google launches Android app store for education
• How Google is setting the new search standard with voice and knowledge graph
• Google TV will receive Android 4.2.2 update as well as latest version of Chrome
• And, bam! Here’s Google Compute Engine
• Google’s growing cloud just got a NoSQL database
• Here’s the real theme of Google I/O: Service unification between Chrome and Android
• Why the snap of a photo changed my mind about Google Glass
• Google gains appeal for cloud services, but there’s this company called Amazon

Pre-show expectations:

• Why the time has come for Android @Home to finally make a splash
• Google I/O: Arming for the battle of the public cloud stars
• What to expect for Chrome and Android at Google I/O 2013
• Where to watch Google I/O 2013 live online
• Reports: Google will launch music subscription service at I/O

“This effort represents the very best example of a public/private partnership,” Rick Richter, who was the president of Simon & Schuster’s children’s division before founding Ruckus, said in a statement. “[It] shows real initiative on the part of CPTV to satisfy the needs of their audience and, importantly, to engage them through their smartphones and tablets.”

As with Ruckus’s existing app, parents can track their children’s reading through the CPTV app and can buy new books through it. Users can also donate to Connecticut Public Television directly through the app. And CPTV is licensing the technology used to build the CPTV-branded app to other public television stations that want to do something similar.

Ruckus hopes to offer this developer service to other content companies that need a way to share their content through an app as well. That’s not limited to children’s content: Rather, Ruckus hopes that the general capabilities of its app — including the digital storefront, in-app purchases, content management system and email engagement — will be useful to lots of content companies. CPTV plans to roll out an app for  general audiences, using Ruckus technology, later this year.

The Digital Reader, which has been following this story for several months, reported Monday that an unnamed Delaware-based LLC was the new owner of Liquavista. Amazon confirmed the purchase in a statement:

“We are always looking for new technologies we may be able to incorporate into our products over the long term. The Liquavista team shares our passion for invention and is creating exciting new technologies with a lot of potential. It’s still early days, but we’re excited about the possibilities and we look forward to working with Liquavista to develop these displays.”

The purchase price was undisclosed, though it may be made public in Amazon SEC filings’s next quarter.

Amazon’s Kindle Fire tablets obviously already have color screens, but Liquavista’s technology offers the potential for color screens that wouldn’t deplete battery life to be added to e-ink readers. This would be particularly useful for children’s books and graphic novels.