US congressman in row over use of Twitter during Baghdad trip

Republican Pete Hoekstra used the microblogging service to send a string of messages about his visit to Iraq

Daren Forsyth leaves BBC-land to launch a Twitter-esque startup

BBC executive Daren Forsyth is leaving Media Trust after one year to explore the potential of a Twitter-inspired business for large organisations and brands. By Jemima Kiss

Twitter’s bumper news week: Making money, the BBC and becoming the UK’s sixth biggest website

Coverage of Twitter has been approaching somewhere near fever pitch this week. We can thank/blame celebtwitties like Stephen Fry and Jonathan Ross for that, and perhaps Thursday's Twestival, the global, 24-hour Twitter meet up that is predicted raise as much as $1m for a water charity. More on that later in the week, but, in the meantime - what have people been talking about? By Jemima Kiss

The BBC’s Twitter slip: Peter Horrocks’ lesson on private messages

The BBC has had something of a Twitter push since late last month with all sorts of interesting people - editors and reporters included - signing up and trying it out. By Jemima Kiss

MySpace removes 90,000 sex offenders

Taskforce calls for tougher restrictions on membership of social networking websites

Facebook aims to market its user data bank to businesses

Facebook plans to boost revenues as it offers up its 150 million customers to be used as a market research tool

Once again, Twitter proves its worth

Social networking service helps spread the word about the emergency landing of a US Airways plane

Facebook: Oh no – they’ve taken away our free burgers

Hot on the heels of that unbelievably stinky anti-breastfeeding decision (very very bad marks, Mr Facebook) comes the latest bizarre move from the social networking site's head honchos. By Jemima Kiss

Building ‘Labour’s HuffingtonPost’ – the next phase is you

If the brains behind LabourList.org get it right, the site could become the HuffingtonPost for the British left wing. That's a very tall order, so is there enough appetite for the site? By Jemima Kiss

Less killing, more kissing: new breed of computer games bring people together

British company Playfish spearheads second generation of friendlier, more collaborative social-network games

100 top sites for the year ahead

Two years after we last picked the web's cream of the crop, our latest selection finds that location-based services, work-anywhere collaboration and video are prominent