He's also the man behind http://www.captainexcelsior.com/

and writes the script for this comic: http://www.snowflakescomic.com/

He creates sketch comedy at http://www.smbc-theater.com

Writes the weinerworks blog

has a podcast at http://www.weeklyweinersmith.com/

currently working on a space opera: http://www.kickstarter.com/projects/smbctheater/smbc-theater...

also this choose your own adventure book: http://www.kickstarter.com/projects/999790007/trial-of-the-c...

And that's only the stuff that I'm aware of

[1] http://www.smbc-comics.com/