Fresh off its release on Android, Instagram, the photo sharing app, was snatched up by Facebook for a reported $1bn in cash and stock on Monday. The blogosphere was buzzing with part shock, part disgust. But above all, the deal was seen as an indicator of how concerned Mark Zuckerberg is about Facebook’s weakness in moving into the mobile world. Read more

After months of speculation, Twitter has finally completed its acquisition of Tweetdeck, the UK-based desktop software for the micro-blogging site’s more sophisticated and prolific users. Read more