Here's the official release. Trevor Hoffman was second, and Chris Carpenter was third. The SBN award voting also went to Webb, but the big difference there is that the bloggers very nearly handed the award to Roy Oswalt, who didn't crack the top 3 in the BBWAA voting.
Here's my ballot and Battlekow's ballot: my top three picks didn't overlap at all with these three (!), while Battlekow agreed with the BBWAA for 1st and 3rd. (I rethought my ballot soon after, though: in retrospect, I probably would've found a spot for Webb.)