TheyWorkForYou.com
TheyWorkForYou.com is the finest example of a political hack I've ever seen. It's basically an ultra-user-friendly front-end to the Hansard public record of all speeches and debates in the houses of commons, with each MP getting their own page complete with a summary of their recent performance and member's interests and a list of their recently recorded parliamentary appearances.
The community features are pretty impressive as well: you can add comments to any speech made in any debate, and there's also a user-populated glossary which is automatically linked in to the speech transcripts.
But with all that, the most useful feature is probably the most subtle: you can subscribe to an RSS feed of your MP's appearances, meaning you can keep track of everything they say on your behalf. It's simple, powerful and a perfect example of the political hacker ethic at work.
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