How Andrew Stott is setting Whitehall a-Twitter

As head of digital engagement for the government, Andrew Stott oversees its much-discussed Twitter rules. But that, he says, is only the tip of the iceberg

Friends Reunited sale talks go down to the wire ahead of ITV results

Last-minute discussions thought to be focusing on profitable Genes Reunited, website's family history arm. By Mark Sweney

Bebo appoints global chief executive after 14-month delay

Stephane Panier named as chief exec of AOL-owned social networking site - over a year after Joanna Shields left. By Mark Sweney

Is Big Brother following you? Government’s guide to using Twitter

Guidelines suggest tweets should be frequent, timely and credible

Heaven is … seeing what everyone’s playing

Keith Stuart: New technologies will one day make videogames indistinguishable from social networking sites – so you'll also know who's playing what

Twitter celebrities: The good, the bad … and the addicted

The tweetometer: Who is a genuine Twitter star, who is too lazy to tweet for themselves and who tweets far, far too much?

Tweeting with the stars

Tweeting with the stars: Some famous names on why they love Twitter

Inside Twitter HQ

Over the last few months, Twitter has morphed from a social networking tool into an instrument of revolution. So what's life like for the 52 employees at its San Francisco headquarters? Bobbie Johnson finds out

Twitter etiquette: the rules

Laura Barton's guide to Twitter etiquette: Never directly address a celebrity in a tweet, don't use it as a dating service and don't post pictures of your . . . you-know-what

How to be a ‘twitt’: a guide for Twitter’s late adopters

New to Twitter? Here's all you need to know to become a fully fledged 'twitt'

Has Morgan Stanley’s teen media expert met his match?

The US investment bank has published a report by a 15-year-old on young people's media habits. What does the Guardian's own teenage expert think of the findings?

Media groups ponder their future amid global recession

Google is upbeat about turning YouTube into a profit-generating enterprise, despite concerns that the site is devouring the group's cash reserves.

WEXO wants to be the Facebook for work experience job seekers

WEXO, Work Experience Online, wants to use social networking to break down the 'it's not what you know but who know' barrier for gaining work experience

Sun Valley: People will pay up for their internet addictions, says Malone

Media moguls attending the exclusive Sun Valley conference are optimistic that people can be convinced to pay for access to websites like Facebook and YouTube

Sarah Brown leads on Twitter and posts G8 summit spouses’ blog

PM's wife blogs on G8 summit activities and puts photos on Flickr