Employee challenges dismissal after posting CV on Linkedin

Case highlights perils of social media sites for firms

The year in social media: Twitter, Facebook and Google vie for the top spot

Google makes the biggest splash with a challenge to Facebook

Password security is broken, say experts

Social networks like Facebook and LinkedIn could do more to protect their users

Groupon delays IPO to deal with regulatory concerns from SEC

Deals site won't be joining LinkedIn on the stock market just yet

V3 downloads roundup: Firefox 6, Boxee 0.9.23, EASEUS Todo Backup 3

LinkedIn for Android 1.1.3

Access, update and monitor LinkedIn from your mobile

LinkedIn changes social ads in face of online privacy backlash

Controversial 'opt-out' setting remains, however

LinkedIn slammed for opt-out setting which could erode user privacy

New setting lets third-party advertisers mine user information and pictures for ads

Google, Apple and IBM see shares slump as financial markets crumble

Tech sector hit hard as US economy and eurozone fears panic investors

Twitter risks overvaluation after reported $800m funding boost

Twitter to expand internationally as investment values firm at $8bn

Macs increasingly targeted as original malware detections hit two a second

Sophos report shows search engine optimisation, mobile enterprise and social attacks rising

Ixxus launches tool to integrate Alfresco with Facebook, Twitter and YouTube

Alfresco CMS gets social makeover as business demand for social capabilities continues to grow

Social network data mining yields worrying results for traditional media

CIOs and CMOs need to work together to tap social networks

Pew study claims social networking improves real-world relationships

Facebook, LinkedIn and Twitter users are friendlier and enjoying closer relationships

Pandora shares prove popular in initial public offering

Music site opens to warm reception on Wall Street

Avaya files for £1bn initial public offering

Another tech firm prepares for flotation in bid to reduce debt

Wozniak's Fusion-io latest technology firm to go public

Storage company to enter the market valued at $1.5bn

Groupon CEO pulls a Google with wacky letter to prospective shareholders

Dot-com bubble 2.0 inflates further as deal-sharing site follows LinkedIn to Wall Street

Zuckerberg gives sworn testimony in Facebook ownership case

Printing expert describes Ceglia documents as 'amateurish forgery'

Groupon files for $750m initial public offer

Analyst warns of social networking 'feeding frenzy'

LinkedIn hit by cookie vulnerability claims

Popular business social networking site vulnerable to account hijacking, says researcher