Twitter has bought Tweetdeck, the 3rd party app, which helps organize, read & post tweets. TweetDeck is a very popular 3rd party app among the twitter users to post tweets. This would help twitter expand its advertising revenue & also to increase the reach. Rumormill has been going on about the purchase for the last few months & also Uber media was in the race to acquire the app. This is based in London & will continue to work fron there after the acquisition. This is a big step for Twitter as it tries to consolidate its position. Tweetdeck has a great technology & user interface to use.