The Guardian had an interesting project to try to get readers to send email to people in Clark County and influence the US vote.
They got some feedback from Americans.The Guardian
It works like this. By typing your email address into the box on this page, you will receive the name and address of a voter in Clark County, Ohio. You may not have heard of it, but it's one of the most marginal areas in one of the most marginal states: at the last election, just 324 votes separated Democrats from Republicans. It's a place where a change of mind among just a few voters could make a real difference.
Writing to a Clark County voter is a chance to explain how US policies effect you personally, and the rest of the world more generally, and who you hope they will send to the White House. It may even persuade someone to use their vote at all.
PROUD AMERICAN VOTING FOR BUSH!