Other Caffeine Angel Studios Sites:

The ES Wiki
The ES Forums
Exploitation Now
Selling Out for Fun and Profit.com

Vikingspace (This one isn't technically under the CAS umbrella, but it is run by Viking-Sensei.)

Webcomics We Read:

The Adventures of Doctor McNinja
The Apple of Discord
Candi
Clone Manga
Darths and Droids
Dominic Deegan
The Dreamland Chronicles
Dresden Codak
Emergency Exit
Flaky Pastry
Friendly Hostility
Geek Tragedy
Girl Genius
Gunnerkrigg Court
Heliothaumic
Holy Bibble
Least I Could Do
Looking For Group
Loli Loves Venom
Minus
Misfile
Muertitos
Nobody Scores
Order of the Stick
Penny Arcade
Poisonwind
Punch an' Pie
5ideways
Sluggy
Something Positive
Striptease
Supermegatopia
The Wotch

Blogs We Read:

Chris's Invincible Super-Blog
Making Light
Mightygodking
Occasional Superheroine
Twentysided

Other Stuff:

The Gaming Den
Kyhm Forums
Something Awful
Cracked