Stefan Magdalinski has been an online civic activist for over 10 years. Previous projects he founded include http://faxyourmp.com, and the groundbreaking online geocoded information source and community, UpMyStreet

His most recent project, TheyWorkForYou, is an activist-created and run re-implementation of Hansard, the UK's parliamentary record. With no co-operation from the authorities, it adds comments, outbound links, trackbacks, functioning search, and finally Wikipedia and Technorati magic to the previously static document, as well as detailed statistics on the performance of UK Politicians.

• Divide and conquer data models - How to open source everything