Smackjeeves is a webcomic site that is widely used and very popular. It is only rivalved by Drunkduck.
Webcomics is the main point of the site. Webcomics are made in any format. This includes sprite comics, hand drawn comics, comic strips, and such. Anyone can make webcomics. If it's popular, that, it won't guarantee.
Many webcomics are across the site of Smackjeeves. Some webcomics asks for co-authors and you could join if you have the skills appropriate.