According to a CanWest News story via Neale News two disaffected Conservatives have asked Elections Canada to investigate the Blogging Tories alleging that by attempting to sway the election in concert with the Conservative Party it was in violation of third-party spending limits.
Call for probe into Tory blogs
ALLAN WOODS CANWEST NEWS SERVICE
It seems unlikely this will go anywhere. Unless these bloggers are getting paid out of party coffers somehow, and I haven't heard that suggested, then I'd imagine free speech should prevail.
Frankly, the parties would be foolish not to encourage bloggers that share their views to band together, given the increasing role and influence bloggers seem to be gaining.