He was quite groundbreaking with his online efforts. He used one site (meetup.com) that arranges for meetings of likeminded individuals who otherwise don't know each other within a specific geographic region to allow them to come together to further promote his campaign. His website was very well done. Better than any other candidate's site I've ever seen.
Very incredible stuff.
And then he blew it with something stupid.
Funny how the liberals blasted him for being such an idiot and throwing it all away and then they go and make him the chair of the DNC.