Since you read OotS you're probably already aware of this one, but I also enjoy
Erfworld. < snip >
I second that suggestion: Erfworld is great.
All of the following are still being updated:
Slightly fantastic ("Regencypunk") is
Penny Blackfeather, updating Sundays.
We're all following
Table Titans, aren't we? (Tues.-Thurs.)
Fully fantastic is
Gaia Comic, with its own wizards' school and other stuff. (Tues.-Fri.)
Do you like Ponies?
Friendship is Dragons puts "My Little Pony" through the D&D 4E wringer. (Tues.-Thurs.-Sat.)
A little more down-to-earth:
Distillum has fantastic elements, but it's set in mundane Savannah, GA. (Weds.)
Pure fantasy, played for laughs (good art, though):
Elf, updating Thursdays. [Edit: Addendum: The title character's sidekick is actually a "combat wombat." You're welcome!]
Celtic magic at a girls' school in Ireland:
Bata Neart, updating Fridays.
Gamers making fun of gamers:
Full Frontal Nerdity, updating sporadically.