In this article Oliver Burkeman thoroughly explains how non-Americans can have a real chance of influencing the outcome of the United States presidential election in 2004 by writing to undecided voters in the crucial state of Ohio. He also instructs how to give money and make your voice heard by contacting the US media. More can be read in the related articles, A brief guide to Clark County and Dear Clark County voter.
In the first three days after publishing My fellow non-Americans, more than 11,000 people requested addresses and due to a strong reaction of US readers Guardian Unlimited has received many voices of protest.
According to Wikipedia, Ohio is a swing state. "The mixture of urban and rural areas, and the presense of both large blue-collar industries and significant white-collar commercial districts leads to a balance of conservative and liberal population that (together with the state's 20 electoral votes, more than most swing states) makes the state very important to the outcome of national elections and, therefore, very important to the campaigns of both major parties."
Guardian Unlimited is an on-line version of the British newspaper The Guardian, formerly known as The Manchester Guardian. It is a serious broadsheet newspaper with relatively left wing politics.