from wiki:
Dean emerges as front-runner
Howard Dean declared his candidacy on June 23, 2003, winning the MoveOn "primary" days later. His campaign would go on to lead most polls and raise the most money in latter part of 2003.In June 2003, Howard Dean aired the first television advertising of the 2004 campaign, spending more than $300,000. During that time, he formally announced his run for president, filing to form a presidential election campaign with the FEC. Later that month, liberal advocacy website MoveOn held the first ever online Democratic "primary", which lasted just over 48 hours. It was an unofficial and nonbinding affair, but with important symbolic and financial value. Of 317,647 votes, Howard Dean received 44%, Dennis Kucinich 24%, and John Kerry 16%. Had any candidate received 50% of the vote, the candidate would have received MoveOn's endorsement and financial support. Instead, MoveOn supported all the candidates. <5>
In July, the Democratic fund-raising numbers for the second quarter of 2003 were reported and announced. Howard Dean surprised many raising $7.5 million, John Kerry raised $6 million, while John Edwards and Joseph Lieberman raised roughly $5 million each. Dean's strength as a fund-raiser was attributed mainly to his innovative embrace of the Internet for campaigning. The majority of his donations came from individual Dean supporters, who came to be known as Deanites, or, more commonly, Deaniacs. His campaign's innovative use of the Internet helped to build a strongly supportive grassroots constituency, much of which remained intensely loyal to him long after the end of his candidacy.
By autumn of 2003, Dean had become the apparent front-runner for the Democratic nomination, performing strongly in most polls. Generally regarded as a pragmatic centrist during his time as governor, Dean emerged during his presidential campaign as something of a populist, denouncing the policies of the Bush administration (especially the 2003 invasion of Iraq) as well as fellow Democrats, who, in his view, failed to strongly oppose them
LOOONG Way to go, people...
http://en.wikipedia.org/wiki/U.S._Democratic_Party_presidential_nomination,_2004#The_race_begins