"A webcomic of romance,
sarcasm, math, and language."
xckd is an online Comic Strip that airs a new comic every week. It is one of the more popular comics. Most of them are related to math, computer programming or the internet.
Andy: Hey Chris, you check xkcd lately?
Chris: No, why?
Andy: They ran this one about Python. Ya know, the language.
Chris: Yeah? I'll check it out. Those xkcd comic are always funny.