Here's webcomics I've discovered within the last few months that weren't on
the list already.
Soup - by MyifanW - it's about a little blue blob and a girl on/in the ocean.
Firman Productions: Moe - by Michael Firman
MS Paint Adventures (current story: Home Stuck) - by Andrew Hussie. It sometimes includes Flash animations, of which
this is the latest one.
Chainsaw Suit - Kris Straub
Supermassive Black Hole A* - by Ben Chamberlain - a hard sci-fi animated (optionally) webcomic in high contrast grayscale
Brawl in the Family - by Matthew Taranto
I would give more commentary, but they're all great, and it took too long to put this together. Enjoy!
EDIT: Seems using an image as a link doesn't work anymore. Well, if you want the link to that particular place in one of the comics, you can quote this post and turn off the rich text editor mode if it's enabled. The URLs are in here.
EDIT(2): Well, that was a waste of time...