Yahoo in rumoured $1.1bn bid to buy white-hot Tumblr

Reports claim board has approved move to buy blogging platform site that could catapult Yahoo back into top flight web firms

Sally Bercow pleads innocence over Lord McAlpine Twitter storm

Speaker's wife says she was merely sharing random thought over Newsnight show that wrongly linked peer to abuse scandal

Twitter’s first star

Thanks to her gift for 140-character witticisms, Kelly Oxford has transformed herself from Canadian stay-at-home mum to Los Angeles-based bestselling author and screenwriter. Hermione Hoby meets the woman all the celebrities follow

Are these the worst apps ever?

Huggies Brazil has launched a new app that tweets you to tell you when your baby has wet its nappy. Think that's bad? Well, there are possibly worse ones, writes Stuart Heritage

Sir Alex Ferguson’s retirement proves a big hit on Twitter

Manchester United manager's decision to retire led to 1.4m mentions in an hour, more than the death of Margaret Thatcher. By Charles Arthur

TweetDeck struck off Companies House register

Closure of Twitter-owned firm will have no impact on users or the performance of the software

RSC and Google team up for online Midsummer Night’s Dream

After their last social media experiment suffered a critical mauling, this new digital collaboration will allow audiences to watch and interact with play on Google+ over three days in June

Twitter’s top trumps: are you the Lady Gaga of social enterprise?

Ever wondered how influential you are in the world of social enterprise? Joe Jervis reveals the top 50 most connected tweeters

Number 10 hands out Twitter exclusives to favoured journalists

Downing Street aims to secure goodwill from journalists by revealing news before its official announcement by ministers

Twitter fiction: Meg Rosoff

The novelist and children's writer takes up our Twitter-based challenge to come up with a story in 140 characters or fewer

‘Snooper’s charter’: Clegg kills off Tory hopes of deal on rewritten plan

Deputy PM says Theresa May's rewritten plans to monitor web and social media use are still unworkable and disproportionate

Google reports record spike in government requests to remove content

Internet giant details requests for material to be pulled from YouTube, Blogger service and from Google search

Boston ‘witchhunt’ on social media sites – and a bad week for the old guard

Virtual manhunt taking place on sites such as Twitter in reaction to Boston bombings showcased growing role of online tools

Forbes Media’s Lewis DVorkin: ‘I’m not a geek, I just like doing new things’

The chief product officer on paying contributors according to traffic and getting advertisers to pay for editorial, writes Lisa O'Carroll

David Colquhoun, Twitter-addicted scourge of scientific quackery

Professor of pharmacology David Colquhoun, the debunker of pseudoscience on his unmissable blog, talks to Tim Adams