From Wandsworth to Camden, hundreds of people have set to work in their local communities to mark Make A Difference Day.
Many have been inspired by the example set by London's 70-thousand Olympic Gamesmakers.
Piers Hopkirk has the story.
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A drunk man who narrowly escaped death when he lay down between train tracks in Harlow has been given a 12-month community order.
A man from north London has been charged with the manslaughter of Louella Eve Fletcher-Michie, who died at the Bestival music festival.
The mother of Ellie Butler - the six-year-old murdered by her father - has lost a bid to challenge her conviction.