Foursquare Gets $41 Million Investment, Time to Grow  —  When Dennis Crowley debuted Foursquare, his location-based social media app, at South by Southwest in 2009, he got rave reviews.  The tech blog Mashable called Foursquare the “breakout mobile app” of the event.  VentureBeat called it “the next Twitter.”

Top Bitcoin exchange Mt. Gox halts trading following massive price decline  —  Top Bitcoin exchange Mt. Gox, which facilitates more than 70 percent of trades of the currency, has halted trading for 12 hours following a gigantic decline in Bitcoin prices.  —  The price of a Bitcoin on Mt. Gox …

Mark Zuckerberg: Immigrants are the key to a knowledge economy  —  Mark Zuckerberg is founder and chief executive of Facebook and co-founder of Fwd.us.  (Washington Post Co. Chairman Donald E. Graham is a member of Facebook's board of directors.)  —  Earlier this year I started teaching …

Apple, Google Not Interested in Settlement, Judge Says  —  Apple Inc. and Google Inc. (GOOG)'s Motorola Mobility unit are more interested in using litigation as a business strategy than in resolving disputes over the use of patented technology, a federal judge in Florida said.

Google's New Inactive Account Manager Gives You Control Over Your Digital Afterlife  —  What will happen to your Gmail, YouTube, Google Drive and Google+ accounts after you die?  That's probably not something you really want to think about, but as more and more of our data now lives online …

Microsoft Plans 7-inch Tablet  —  The personal-computer business is at a crossroads, and Microsoft Corp. isn't sitting still.  —  The software giant is developing a new lineup of its Surface tablets, including a 7-inch version expected to go into mass production later this year, said people familiar with the company's plans.

Production Challenges to ‘Delay’ Launches of iPhone 5S, Lower-Cost iPhone and New iPad Mini?  —  Back in January, reliable KGI Securities analyst Ming-Chi Kuo laid out a thorough roadmap of his expectations for Apple's product launches in 2013, pointing to a very busy third quarter for the company …

Confirmed: Facebook Has Acquired Osmeta, A Stealth Mobile Software Startup  —  While Facebook is building out a bolder role in mobile in the form of Facebook Home, it looks like it is also continuing to make acquisitions that will help bolster that strategy overall.

Reddit Hires Ellen Pao, Who Sued Kleiner Perkins For Sexual Harassment  —  Reddit just announced that it's hired Ellen Pao.  Formerly, Pao worked at venture capital firm Kleiner Perkins.  She sued Kleiner last year for sexual harassment.  Here is Reddit's blog post announcing the news …

Adam Orth, Microsoft game exec who insulted fans on Twitter, has left the company (updated)  —  Update: This story originally featured an image that we used without proper attribution.  We have removed it and apologize to the artist.  —  Microsoft game director Adam Orth …

Microsoft has no fast Windows fixes as PC sales crater  —  Summary: Microsoft can ride Windows 7 upgrades in the enterprise for a bit, but the dismal PC sales picture is worrisome for the company's flagship OS—especially if it can't get tablet and smartphone traction.

Hijacking airplanes with an Android phone  —  An extremely well attended talk by Hugo Teso, a security consultant at n.runs AG in Germany, about the completely realistic scenario of plane hijacking via a simple Android app has galvanized the crowd attending the Hack In The Box Conference in Amsterdam today.

Samsung Galaxy Mega is official and comes in 6.3- and 5.8-inch sizes  —  We knew Samsung was planning more devices, but we didn't expect the arrival of two Galaxy Mega smartphones .  The 6.3-inch model has a ‘HD display’ (we're chasing the precise resolution) alongside a dual-core 1.7GHz processor …

Pandora with friends: Turntable launches Piki, a social radio app for iPhone and web  —  Can people deliver better music recommendations than algorithms?  —  “We realized early on that Turntable's best feature was also a problem: everybody has to be in a room at exactly the same time,” says Billy Chasen, Turntable CEO.

Kik Messenger Tops 50M Registered Users, Adding Over 200K Per Day As It Delivers In-App Push For Kik Cards  —  The messaging space is a hot one these days, and early player Kik is no exception.  The Waterloo-based company announced today that its cross-platform messaging app …

Google Formalizes Settlement Offer to EU in Antitrust Probe  —  Google Inc. (GOOG) submitted a formal set of remedies to the European Union that will soon be shown to rivals and customers as part of settlement talks to end a two- year probe into claims its search results discriminate against competitors.

Rockmelt Will Shut Down Its Social Desktop Browser To Focus On Funneling The Web Into Apps And A New Feed Site  —  “Distributing a desktop browser is hard and expensive (especially if you don't have an operating system or the world's most trafficked website to promote it)” says Rockmelt …