• Watch videos recommended just for you • Use Facebook Groups to get things done, discuss similar topics, and more • See what friends are up to • Watch and interact with live video • Share updates, photos and video • Get notified when friends like and comment on your posts • NEW

Official Wikipedia App for Windows 8.1. Wikipedia is the free encyclopedia containing more than 20 million articles in 280 languages, and is the most comprehensive and widely used reference work humans have ever compiled. Send us your feedback on Twitter @WikimediaMobile. The code is 100% open source and community ...

Remember the Star Trek computer? It's finally happening--with Wolfram|Alpha. Building on 25 years of development led by Stephen Wolfram, Wolfram|Alpha has rapidly become the world's definitive source for instant expert knowledge and computation. Across thousands of domains--with more continually added--Wolfram|Alpha uses its vast collection of ...

Twitter is a free app that lets you connect with people, express yourself, and discover more about the things you love. Hear about breaking news first. See what your favorite celebs, athletes and public figures are chatting about. Catch a glimpse behind-the-scenes at the Oscars, concerts, sporting events, and more ...

How far can the world’s fastest hedgehog run? Play as Sonic the Hedgehog as you dash, jump and spin your way across stunning 3D environments. Swipe your way over and under challenging obstacles in this fast and frenzied endless running game. SONIC… The world famous Sonic the Hedgehog stars ...

Dropbox lets you take your photos, docs, and videos anywhere and share them easily. Access any file you save to your Dropbox from all of your computers, phones, tablets, and on the web. With Dropbox you’ll always have your important memories and work with you. And if something happens ...

Shazam is the best way to identify music around you. Tap the Shazam button to instantly identify, explore, buy and share. With Shazam you can: • Recognise songs and tracks wherever you are. Even offline! • Buy tracks from Windows Store • Instantly discover more about the song: get lyrics and see music ...