Zap! is a science fiction webcomic hosted on Keenspot. Written by Chris Layfield and drawn by Pascalle Lepas since 2003, the webcomic has continued to improve, particularly on the visual side. (Don't despair the lengthy archives, there is a great overview of the storylines for new readers who want to quickly get up to speed).
I got a chance to interview Chris and Pascalle by email this month.