There are a number of projects around the world aimed at opening up the legislative process through creative re-use of the records produced by parliaments, congresses etc. It is worth looking at some of these power of information exemplars.
UK – TheyWorkForYou.com
US – OpenCongress.org
EU – IPPR-MEP.eu (How MEPs Work)
Australia – OpenAustralia.org
There are some interesting lessons to take away from the approaches taken by each project to sourcing, mixing and presenting data.
Power of Information Task Force 
There is also an example in New Zealand:
http://theyworkforyou.co.nz/
And, possibly obliquely, http://hansard.millbanksystems.com
I would like to add the Netherlands to the list:
http://www.watstemtmijnraad.nl
It starts with four local governments, but plans to go nationwide.
Nationaly, there are two non-governmental sites:
http://www.politix.nl
http://www.ikregeer.nl
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