
A webcomic of romance, sarcasm, math and language is the self-description of xkcd on it's website. The comic has a variety of topics it satirizes and makes fun of and a lot of that is based on pop culture but random content is often used. xkcd is the darling of the web community Digg with comic posts getting dugg on the website quite often.

Theater Hopper is a flat out comedic look at the current films in cinemas through the eyes of two movie goers. It is also distributed in the blog FirstShowing.net. I really enjoy the blog due to it's essays and reviews on the movies they are featuring which really complements the comic.

Press Play Comic is a new kid on the block. It's only been around for a month or so but I think it's doing great things. Taking Theater Hopper's lead it makes fun of all things movies and does so in an amusing way. I see great things for this comic.
Please tell me if you have any recommendations because I am new to the web comic craze and comics like the ones above have left me wanting for more.