One of the co-founders of Twitter, Jack Dorsey, has been announced as a replacement to Evan Williams, who announced he will be taking a backseat at Twitter earlier in the year.
New statistics show that Twitter users in the UK have declined over the past few months, prompting analysts to question whether the site has hit its peak.
Twitter's trending topics have been given a local flavour, so fans of the service can now see what particular subject is becoming popular in their home town.
Stephen Fry is quitting Twitter for a short while in order to get his current book finished and delivered to his publishers this coming April.
Twitter boss Biz Stone has revealed that paid-for accounts are all ready to launch and that we will see the service this year.
Twitter has had it 5 billionth tweet, according to GigaTweet.com which measure's the micro-blogging services site traffic.
The UK Government has published a 20-page guide to Twitter on the Cabinet Office website, urging MPs and civil servants to embrace the micro-blogging service.