I'm in the middle of putting up some nominees right now, and it struck me that maybe "Best B&W" would work better as "Best Monochrome" or something similar.
There are a few comics out there that use a single color much in the same manner as other use greytone. Rather than make a new catergory, I think an all encompassing one such as what I suggested may be better.
I know it's too late this year, but next year maybe.
ANNNNND:
Homestar Runner is NOT a comic. It's a flash cartoon site. It shouldn't even be considered, let alone win like it did last year.