Introducing Windows 8 Consumer Preview  —  Moments ago in Barcelona, we announced the release of Windows 8 Consumer Preview, available to download now for anyone interested in trying it out.  We've been hard at work for many months now, and while we still have lots more to do …

Facebook introduces Premium: A marketer's dream, a user's nightmare?  —  “People worry that technology will disconnect us, but study after study...has shown that it strengthens us,” said Facebook's COO Sheryl Sandberg today in New York City.  —  What Facebook's technology is doing, is connecting brands with human beings.

Foursquare Is Doing Big Things, So Existing Investor Spark Capital Buys $50M Of Employee Stock  —  Foursquare founder Dennis Crowley spent this afternoon in Barcelona, explaining his location company's potential to Mobile World Conference attendees.  Someone else didn't need to hear the presentation, though.

Who Decides What Gets Sold In The Bookstore?  —  We can probably agree that the local supermarket has no moral or ethical or business obligation to sell cherry-flavored Cap'n Crunch.  If the owner doesn't like cherries, she doesn't have to sell them.  —  And the cereal maker shouldn't work under …

Lytro review  —  You've never seen a camera like this before There are a few easy ways to make a digital camera better: make the sensor bigger, improve the quality of the lens, speed up the processor.  But those are incremental improvements on a basic technology that hasn't changed much in a long time.

With SeaMicro buy, AMD to double down on servers  —  SeaMicro's SM10000-64 server.  —  Updated: AMD just confirmed the deal and said it would pay approximately $334 million, of which approximately $281 million will be paid in cash.  —  Chipmaker AMD plans to announce its acquisition …

I'm Being Followed: How Google—and 104 Other Companies—Are Tracking Me on the Web  —  Who are these companies and what do they want from me?  A voyage into the invisible business that funds the web.  —  This morning, if you opened your browser and went to NYTimes.com …

Apple reportedly considering 14-inch MacBook Air  —  Apple is reportedly considering launching a 14-inch MacBook Air and may start mass production in the near future to fully enter the Asia PC market, according to sources from the upstream supply chain.  —  Currently, 14-inch panels …

“Spreading Santorum” Drops At Google; New Site Keeps Anal Sex Definition At Number One  —  As Republican presidential candidate Rick Santorum loses two primary races to rival Mitt Romney, perhaps he can console himself with, ironically, another loss.  Spreading Santorum, the page defining …

Helpful Tips For Keeping Your Job As Editor Of Techcrunch  —  I rarely get writers block, but I've aborted multiple attempts to write about the leadership change at TechCrunch yesterday.  So I'm going to keep it simple.  —  I'm exceptionally bummed that so many people have left TechCrunch.

Enterprise Social Networking Platform Yammer Raises $85M From DFJ Growth, Khosla, And Others  —  Enterprise social network and communications platform Yammer has finally closed that big round we and PandoDaily heard about earlier this year.  The company has raised $85 million in new funding …

Google's Susan Wojcicki: Where we're heading  —  Nearly all the company's revenues come from her products.  Now, Google's Susan Wojcicki weighs in on what's next for advertising and what the search giant stands to learn from Google+.  —  FORTUNE — It's been said before, but it's worth saying again …