Today's turbulence explained  —  Not how we wanted today to go.  At approximately 9:00am PDT, we discovered that Twitter was inaccessible for all web users, and mobile clients were not showing new Tweets.  We immediately began to investigate the issue and found that there was a cascading bug in one of our infrastructure components.

Microsoft's Surface Tablet Said To Be Wi-Fi Only In First Models  —  Microsoft Corp. (MSFT)'s Surface tablet computer, unveiled this week to compete with Apple Inc. (AAPL)'s iPad, will initially go on sale without a connection to mobile-phone networks, according to two people familiar with the matter.

Larry Page Is Speechless, Literally — And Won't Be Onstage at I/O Next Week  —  Google CEO Larry Page has lost his voice, said Executive Chairman Eric Schmidt today.  —  Page, who is already well known for his reluctance to speak publicly, skipped today's annual stockholder meeting.

Microsoft Is the Most Exciting Company in Tech, Hands Down  —  I never thought I'd ever hear myself utter such words post-1995.  But after Monday's reveal of the Surface tablet—complete with an ultra-thin, pressure-sensitive keyboard cover and the most discrete integrated kickstand ever …

Facebook is now rolling out the ability to edit your comments  —  There's nothing worse than making a typo when you've just left the “perfect” comment on someone's Facebook status update.  Turns out, Facebook feels the same way.  —  The company told TNW that it has just started rolling out the ability to edit your own comments.

Problems For Monetization: Lawsuit Forces Facebook To Let You Opt Out Of Sponsored Story Ads  —  Facebook's business model just hit a stumbling block, as the social network is being forced to let users opt out of having their likenesses repurposed as endorsements in Sponsored Stories ads.

Flipboard officially debuts on Android, adds Google+ and YouTube, and comes standard on the Galaxy S III in the US  —  Social news reading app Flipboard is today officially launching its Android app after its short beta period, new integration with YouTube as well as Google+ …

Galaxy Nexus Listing in Play Store Outs Jelly Bean as Android 4.1, Arriving “Soon”  —  And I'd say this about settles it.  Jelly Bean will be Android 4.1, according to the Google Play listing for the Galaxy Nexus.  We had all sort of assumed that 4.1 would be next, but now the question remains …

Tweetbot for Mac confirmed as first image surfaces on Twitter  —  We've suspected that the popular iOS Twitter client Tweetbot was coming to the Mac, and now it's been confirmed.  Tapbots' Mark Jardine posted an image on Twitter today, touting the Retina display of a new MacBook Pro …

Google Launches Coordinate: A New Service For Managing Mobile Workforces  —  Location-based apps and services like Foursquare have made significant inroads among consumers in the last few years, but most of the recent developments around location-based apps have bypassed the business market.

Exclusive: Gaming company Gaikai seeks buyer  —  Orange County start-up could be worth well over $500 million.  —  FORTUNE — Gaikai, a popular provider of cloud-based streaming services for PC and console games, in on the block.  Sources tell me it already has hired bankers, and is expecting well in excess of $500 million.

Amazon.com's domain power play: We want to control them all  —  If Amazon.com gets its way — and that's still a big “if” — it will soon control 76 new domain extensions on the Internet.  Most observers had expected the company to apply for .amazon and .kindle, but it seems that was just for starters …

Apple starts $500 off Macs, $250 off iPads employee discount program  —  In late January, Apple CEO Tim Cook announced to employees that a new major Mac and iPad discount program for employees would kickoff at some point in late June of this year.  Keeping that promise, Apple, today …

Insight: Look, no hands!  Augmented reality gets a grip  —  (Reuters) - One day in March 2000, just days before the dot-com bubble began its journey back to earth, German engineer Thomas Alt first glimpsed the future of technology.  —  “Do you know augmented reality?” his boss at Volkswagen asked.

Bing Rolls Out New Image Search With Better Search Suggestions, Filters And Bigger Thumbnails  —  Just a few weeks after completely redesigning its regular search results pages, Bing rolled out a nice update to its image search feature today.  With this update, Microsoft is improving …

The art of important work, of making a ruckus and of inventing the future  —  Entrepreneurs teach VCs, not the other way around.  And I was lucky early in my career to back Seth Godin, who taught me a lot.  When I met Seth, he was writing books and building a web company.

Y Combinator-Backed Local Marketplace App Yardsale Launches Nationwide  —  Yardsale, a mobile app to help folks sell goods to local buyers, is now available throughout the U.S., after a long, long period of testing in the San Francisco Bay Area.  The latest version of the app …