Lawyers warn Twitter and Facebook users

Stefan Wermuth/PA Wire/Press Association Images

Recent high profile cases have revealed just how much trouble an unpleasant Tweet or Facebook update could land users in. With one Twitter user facing a bill for £90,000 in damages for libel and another jailed for mocking footballer Fabrice Muamba, one expert has warned about the high price people will pay for vindictive posting

So what are the risks?