Why did Middle Men sink in the UK?

Peter Bradshaw: Luke Wilson's portrait of a sleazy web-porn hustler was trounced by The Social Network's cleaner moral fibre. Surely there was room for both?

Barack Obama becomes first US president to host a Twitter town hall

President proves too verbose for 140 character format as he issues a 387 word reply to one tweeter

Facebook gets even more face-to-face thanks to Skype partnership

Rolling out in the next few weeks, Mark Zuckerberg says the feature brings together two of the web's most popular consumer services

Why I set about hitting the News of the World where it hurts – its advertising

Melissa Harrison: The Twitter campaign has struck a chord with the phenomenal number of people sickened by reports of the NoW's behaviour

The Shallows by Nicholas Carr – review

Is the internet really altering the way our minds work? By Ian Tucker

Facebook to team up with Skype for video chat, say reports

Mark Zuckerberg's social network giant poised to announce 'awesome' launch this week according to technology blog

Zynga IPO: how important is mobile for the company?

Stuart Dredge: Social games publisher's S-1 document has information on its apps strategy

FarmVille creator Zynga files for $1bn flotation

IPO is one of the most eagerly awaited floats of the year. By Mark Sweney

Twitter investigated over dealings with apps firms

US regulators probe Twitter's relationship with UberMedia and other third-party companies behind BlackBerry and iPhone apps. By Josh Halliday

Google+ ‘blocked in China’

Great Firewall of China website shows users are unable to access any location within google.com. By Charles Arthur

Zynga revenues radically outstrip FarmVille creator’s expectations

On eve of reported IPO, revenues more than double what Zynga expected one year ago, according to confidential business plan. By Lisa O'Carroll

FarmVille creator Zynga plans $2bn IPO this week

Reported flotation of online social gaming firm behind Mafia Wars would value it at between $15bn and $20bn. By Josh Halliday