A new welcome to Yahoo!  —  Yahoo! first began as Jerry and Dave's Guide to the World Wide Web, a directory of links created to help organize the Internet during its very early days.  That simple directory evolved through the years into the Yahoo! we know today — a starting point for your daily habits.

Apple iPhone 5 Overtakes Samsung Galaxy S3 to Become World's Best-Selling Smartphone Model in Q4 2012  —  According to the latest research from our Handset Country Share Tracker (CST) service, Apple's iPhone 5 overtook Samsung's Galaxy S3 to become the world's best-selling smartphone model …

Google shows what it's like to use Project Glass in new video and expands preorders  —  It's been almost a year since Google first unveiled its vision for Project Glass, but today the company has expanded preorders and released a new overview video, demonstrating how the glasses display interactions and services when they are in use.

Announcing the Twitter Ads API  —  Since we launched Promoted Tweets in April 2010, marketers have come to Twitter to reach new audiences and engage with more than 200 million active Twitter users on the web, on mobile devices, and on tablets.  As interest in Twitter has grown …

Steve Ballmer On the Strategy Behind His Strangest Product  —  Windows 8 is radically different from any previous version of the Windows operating system.  Designed to run on smartphones, tablet computers, laptops, servers, and even supercomputers, Windows 8 presents its users with virtually the same interface on any device.

NVIDIA To Build A New Home, 20 Years After Our Founding  —  Twenty years ago this month, we founded NVIDIA.  Our vision that computer graphics would revolutionize computing has propelled us into becoming one of the leading technology companies in the world.

U.S. Unveils New Strategy to Combat Hacking  —  WASHINGTON—The White House unveiled a new strategy to exert pressure on China and other countries that engage in corporate espionage against the U.S. as part of a new administration push to counter cyberattacks and commercial spying.

Art Levinson, Apple's chairman, talks life after Steve Jobs  —  Steve Jobs' close friend and colleague Art Levinson describes what life at Apple has been like over the last 16 months.  —  FORTUNE — “Weird.”  —  That was the one-word answer given by Apple (AAPL) chairman Arthur D. Levinson …

Durango Next-Generation Kinect Sensor  —  Launched in November 2010, the Xbox 360 Kinect Sensor set a world record for the fastest selling consumer electronic device, selling ten million units in its first four months alone.  Natural user interface (NUI) experiences using Kinect have proved …

For $19, an Unlimited Phone Plan, Some Flaws  —  A typical smartphone costs around $200, but it's usually shackled to a two-year contract that often costs $70 or more monthly and includes limits on data consumption, voice minutes and texts.  Even prepaid smartphones, without a contract, can cost $30 to $50 a month and carry limits.

Apple's Jonathan Ive talks design—on a beloved kids' show  —  “Heartwarming” isn't a word you normally associate with industrial design, but I dare you to watch this clip from beloved UK children's show Blue Peter without cracking a smile.  —  When asked how he would design a combination pencil case …

Square now offers stores a “Business in a Box” hardware package for Square Register, starting at $299  —  Digital payments company Square today announced that it can now offer brick-and-mortar stores a complete package of hardware to run their business with its point-of-sale solution Square Register.

Microsoft to tighten further its Yammer-Office ties this summer  —  Summary: Microsoft's SkyDrive Pro and Office Web Apps technologies will be tied more tightly into its Yammer enterprise-social-networking offering as of summer 2013.  —  Buried in a press release on Yammer momentum are a couple …

Xamarin debuts iOS and Android app development inside Visual Studio for C# programmers  —  If you develop in C#, you can now build apps for iPhone and iPad ... and hundreds of millions of Android smartphones and tablets.  And you can do it all right on your PC in your favorite development environment, Visual Studio.

LivingSocial raises $110 million in fresh capital  —  LivingSocial Inc. has raised a fresh $110 million from a group of current investors that will allow the daily deal giant to “build our reserves, solidify our long-term plans and execute against our vision for the future,” CEO Tim O'Shaughnessy told employees in a memo Wednesday.

iPhoneDevSDK Details What Led to Apple, Facebook Hacking  —  In January, a number of Apple employees had their Macs compromised following visits to the popular iPhoneDevSDK forum.  Employees from Facebook and likely dozens of other companies were compromised as well.

SwiftKey 4 released for Android (hands on): Best keyboard for Android  —  Summary: The best mobile keyboard just got even better with the release of SwiftKey 4 for both Android phones and tablets.  —  James Kendrick  —  I have been using the SwiftKey keyboard on both Android phones and tablets since its first version.

App Test Platform TestFlight Comes To Android In Private Beta, Says 300K Apps Uploaded On iOS  —  Over the past couple of years, TestFlight has become the standard choice for giving beta testers (and tech bloggers) early access to iOS apps.  Today the service is launching for Android developers too …