On her 29th birthday, actor Jessica Biel called on her devotees to raise cash for Charity: Water, that aims to provide clean and safe drinking water to people in developing parts of the world
TV presenter Jonathan Ross and actress Joanna Page got busy on Twitter when their friend's Pug was stolen. Ross tweeted, ‘So sorry to hear that! You poor things,’ asking people to help find the dog
Kim Kardashian was one of thousands to support Troy Davis on Twitter, a man convicted of murdering a police officer in 1989. But Troy insisted that he was innocent
Oprah Winfrey, Paris Hilton and Ben Stiller were among the celebs who urged support for survivors of the Haiti quake. Stiller tweeted, 'People in Haiti need our help and attention right now'
After Steve Job’s death, Ashton Kutcher tweeted, 'Join me in honouring Steve Jobs by donating to College Track.' More than $80,000 was raised for the charity co-founded by the late Apple boss' wife
Chef Vikas Khanna speaks to the audience