I found this comment on the Politico:
Obama supporters can relax a bit. Information still points to a very active clinton "blog" activism. Almost 40% of IP address are still coming from 1 or 2 campaing sites. Just relize that the outragous comments are not from regular democrates but staffers paid to spam the boards.
This is something we've been tracking at the Huffington Post, but, as far as I know, we haven't been able to confirm it.
Here's a pro-Clinton site that's organizing a team of comment spammers.
Another story from December.