mySociety are the UK based group who run sites like http://www.writetothem.com (the successor to FaxYourMP?.com), http://www.pledgebank.com and http://www.HearFromYourMP.com .
We have a number of significant successes involving charities and campaign groups that we'd like to discuss, such as:
http://www.pledgebank.com/refuse
http://www.pledgebank.com/rights
http://www.pledgebank.com/catcomm
http://www.pledgebank.com/globalmentoring
