That's a good point. xkcd without the alt text is just not the same.

Here's another good serial strip i've been meaning to follow since i discovered it, and probably actually would if i could put it in a widget:
http://www.darthsanddroids.net

It's a spoof strip that takes place in a universe without Star Wars, where a group of role-playing gamers is doing a "Star Wars" campaign. It's brilliant.

It was inspired by The Dungeon Master of the Rings, a similar take on The Lord of the Rings. That one is finished, however, while Darths and Droids goes on...