I've just signed the Power 2010 pledge (you should too). I've been following the campaign with interest from the start, and voted on 20 or so reform ideas, three of which made it into the top five. Here's the message I sent accompanying my signature:

I support the Pledge because I think it's an awe-inspiring demonstration of grassroots activism, and sets an interesting precedent for the value of the web in democratic reform. The internet has radically altered the way we engage politically, and the future of our democracy needs to take that into account.

I voted for the following reforms:

Introduce a proportional voting system

The two main parties, both unpopular with so many people in this country, have dominated Parliament for too long. First Past the Post in its current form is unrepresentative and undemocratic. The Government is too easily able to manipulate the system to increase their own power, as Labour did by re-writing the constituency boundaries in their favour before the last election, and as the Tories did by destroying the trade unions before that. Power should be devolved to allow small parties and independents more chance to have an impact on policy.

Scrap ID cards and roll back the database state

I believe compulsory ID cards attached to a national database, the DNA database and several other national databases constitute an infringement of personal privacy and civil liberties. I do not think the cost in money, time and effort is worth the benefit to society, and I do not trust either of the two biggest parties to use databases ethically, responsibly and securely. While databases are sometimes essential for the provision of public services, separation between departments should be maintained, and I don't think the Government should generally have access to that data except in exceptional circumstances. We have seen enough evidence of data breaches and database-related abuses of power to know that the current Government cannot be trusted, and without a radical reform of our democratic system I do not believe future Governments will be any more trustworthy.

Draw up a written constitution

England's government has historically operated based on tradition and precedent. Our society has seen radical changes in the last century, with the rise of social equality and the information revolution, and the onset of climate change. How things were done in the past is not always the best way to proceed. We should draw up a new constitution that reflects modern values going into the 21st Century, which should enshrine and protect such things as equality for all and the rights and liberties of the citizen, and prevent future Governments from undermining these basic principles. A written constitution is particularly important in a system with proportional representation, which lacks the conservative safeguards of FPTP.

I did not vote for English Votes for English Laws, as I think the United Kingdom is strengthened by being as united as possible.

I also did not vote for an elected second chamber, as I feel the value of the Lords is in their ability to engage in long-term thinking without having to play popularity games. I think the hereditary and class-based aspects of the House of Lords are deeply flawed, and would like to see a second house with a more diverse membership and equal representation from different sectors of society. However, any second house should be set up so that it can continue to offer checks and balances to the Commons - the two houses should not be identical. I might be in favour of an elected second house with a substantially longer term, but I think there are other options. Still, I would like to see reform of the Houses and would be happy to see the question put to a referendum.

I'm still thinking a lot of this stuff through; it's incredibly thorny and complicated and I don't pretend to have all the answers. I think that reflects more or less my current state of thinking on these specific issues, though.