there are endless ways of making sock
crosswise (see Unexepected Knitting, Debbie New)
there are different heels
(with round, half round, and square turnings)
there are after thought heels
(flat or conical)
there are short row heels
there is the strong heel
there is the gansey heel
and others (the german heel and the welsh turning!)
toe up heels incluced
a reversed engineered flap/turned/gusseted, (2 styles that i know of!)
there are turkish style socks, (with pointy toes and heels)
there are EZ’s "art socks’ (and along that line see the tsock tsarina’s swan lake boots!-find her blog by googling)
then there are different styles of toes.
flat or french
(and then there are the fine details like cast on methods…)
i have knit (and show on my photogallery, link on my blog) about 36 pairs in the past 4 years… and no 2 are the same… and i still haven’t explored all the different styles/combinations.
you can find a pattern you like, and knit it again and again, or you knit nothing but socks for years and years, and never make the same socks twice!
i don’t have any sock patterns on my blog, but look up the Dayton (ohio) knitting guild,they have a free pattern (PDF) for socks, and there are plenty of other patterns available for free (knitty.com has at least a half dozen socks patterns)