I've been uploading a few comics to the art portal lately, so I thought it would be appropriate to post something like this. This is a list of the comics I follow online, mostly through isitfunnytoday.com, the rest through RSS feeds (in either case, I get notified when there's an update). "Webcomics" and "syndicated comics that can be followed online" are both included, because I don't think there's a great difference between the two. Some of these I like a lot, while others I like just enough to subscribe to and not much more.

Mainly story-based:
Aardehn
The Abominable Charles Christopher
Kukuburi
One Swoop Fell
That Ur-Quan Master
Ugly Girl

Mainly "gag-a-day":
Abstruse Goose
Basic Instructions
Bellen!
Cat and Girl
Cheer Up Emo Kid
Dilbert
Dinosaur Comics
Garfield Minus Garfield
Journey to Mt. Moriah
Kate Beaton
A Lawyer, a Doctor and a Cop
Mimi & Eunice
This Modern World
Moe Comics
My Medicated Cartoon Life
Optipess
Piled Higher and Deeper
POPsickleSTICK
POPstrip
Questionable Content
Rat Tangent
Rooster Teeth
Sandra and Woo
Saturday Morning Breakfast Cereal
Simulated Comic Product
Sinfest
Summer on the Brandywine
Tiny Ghosts
Will Laren
Wondermark
xkcd

Non-updating/very-slow-updating:
A Lesson Is Learned
The Boids!
Cat Rackham
Copper
Gone with the Blastwave
Papercut
The Perry Bible Fellowship
The Strange High House in the Mist
The Wrong Hero
Zip and Li'l Bit

Generally, I would say that I like comics that are sometimes smarter than I am (i.e. Cat and Girl) more than comics that are sometimes dumber than I am (i.e. Sandra and Woo - to be honest, I mainly follow that one because I like the art). The former gives me, as a reader, something to reach for; a direction in which to go. The latter asks me to go back on the path from which I came; to fall backward into senility.

I don't know if that holds true for other people or not.