From USAToday article about how bloggers played their part in the 2004 campaigns:
On Monday, Democratic convention organizers put on a high-profile "breakfast for bloggers." Keynote speaker Barack Obama, the party's candidate for U.S. Senate in Illinois, told the bloggers: "Although I can't match faces to blog sites, you guys have just been doing a fantastic job. ... One of the most exciting things is how you're energizing young people."
Despite this quote coming from his Senate campaign, it clearly shows his feelings on bloggers and how they can get the younger generation interested in voting... If we find evidence that he has since changed his opinion, we can always post that as well.