Here are some links to other comics I would reccomend.

Bittersweet Candy Bowl - A beautiful comic about high school and drama. If you start reading this, you will want to never stop.
Prequel - A comic about making a cat cry. An amazing demonstration of neat ways to use a web browser to read a comic. Arguably my greatest inspiration to starting this, from a technical standpoint.
Poppy O'Possum - A comic set in a high-magic universe focusing on Poppy, who can't use magic, and the troubles that result.
Manly Guys Doing Manly Things - Weekly comic about a future space marine in the present. Makes fun of pop culture in very creative ways.
Starslip - Ended, but a great Sci-Fi Comedy/Drama.
Girl Genius - An amazing Mad Science Steampunk universe and one of the longest comics I know of.
Bob The Angry Flower - Simple. Dark. Weird as hell. Brilliant.
Achewood - An internet classic, Achewood's writing rides the line between eloquent poems and sheer madness. Rarely updated much any more.