Did you know the BBC's grassroots campaign website, Action Network, has been honoured as the top politics and internet "world changer" of 2005, for the third year in a row. The site was declared the winner of the Top 10 vote at the World Forum on e-Democracy in Paris this week:
http://www.bbc.co.uk/dna/actionnetwork/
It is basically how to start and run a local campaign. I looked up the London ones and these were my favourites:
* Anti 4x4 SUVs http://www.bbc.co.uk/dna/actionnetwork/G282
* Dump the Humps http://www.bbc.co.uk/dna/actionnetwork/G480
* Make LAs efficent http://www.bbc.co.uk/dna/actionnetwork/G1080
There are plenty more. Enjoy!