Yahoo made it official today: It is buying micro-blogging service Tumblr for an eye-opening price of $1.1 billion. Some Tumblr users already are threatening to leave, and opinions among […] Original post by Dave Young

YouTube today rolled out a few dozen paid channels requiring viewers to pony up monthly subscription fees, marking its first use of a subscription model since the video-sharing site […] Original post by Dave Young

Mobile messaging app WhatsApp made a splash this week when its chief executive proclaimed that it was bigger than Twitter in terms of the sheer number of text messages […] Original post by Boney