Twit Vote UK
I know, I know ... as if there weren't enough twits voting in the UK already.
The UK is holding a general election on the 6th May. If you can't wait until then to cast your vote then you can vote on Twit Vote UK. Using Twitter and Google Maps Twit Vote UK hopes to give an overview of people's voting intentions around the country.
If you have a twitter account, you can vote using the format,
"@twitvoteuk, postcode, political party"
Your vote will then be displayed on the map based on your postcode. You can only tweet your opinion once every 24 hours.