some wonderful shots have been posted already.
i purchased my first macro lens this year, the canon 100mm macro and started learning how to take sharp macro photos. so the photos i'm most proud of from 2008 are definitely my macro images. two of my favorite macros involved harassing a hornworm that was discovered in the backyard:
hornworm 1
hornworm 2
my best seller this year overall was my irish cottage taken in 2006, but thats no surprise since i sell out of that print every year at the local shows. the best seller out of my new images ended up being the white lily on white.