xkcd - A webcomic of romance, sarcasm, math, and language.
Community rules (some basics, because every place has to have them, or we'd be in a state of anarchy):
[ x ] The post does not have to contain icons, as long as it contains other graphics related to xkcd. (ie: headers, friends only banners etc only is fine. However, of course, it must contain some sort of graphics.)
[ x ] Icon previews should not contain more than 3 icons. Anything else should be under a cut or a link back to the poster's journal.
[ x ] Credit xkcd.com in the keywords, and the icon maker if they request it. This is a must.