Below is a list of stuff I've been reading/watching off and on in my spare time. I recommend pretty much anything on this list, as long as you're interested in Let's Plays/Fancomics (I would assume an interest in Forum Adventures, if you're reading this :P). Currently Processing YouTube
SlimKirby's Let's Play Super Bomberman 3
Odinspack33's Let's Play Donkey Kong Country Returns Webcomics
Square Root Of Minus Garfield [haven't checked in a while, though]
The After Subtract [A concluded sprite comic with relatively normal Mario and Luigi; a talkative, split-personality Link (Navi included); a talkative, homicidal (when it comes to food) Kirby; a Waddle Chu; and relatively normal Sonic and Tails. It starts a bit slow but after that it stays consistently funny.] Forum Adventures
Too many to really list! Here's a brief few I can think of off the top of my head...
Equiquest 2010
Iji
It's A Political Box
a Pidgey Named Fish
You Have To Explode The Sun
Corn Maze 2
Star Salad
NO TIME TO EXPLAIN
Magic Maker
Paper Mario and the Everclear Night [I'll catch up eventually...]
Pixel Quest
You Have To Push A Button Recently Processed (starting with most recent)
SlimKirby's Let's Play TLoZ: Majora's Mask
Odinspack33's Let's Play TLoZ: The Minish Cap
Odinspack33's Let's Play TLoZ: Oracle of Ages
Odinspack33's Let's Play TLoZ: Oracle of Seasons
Irregular Webcomic!