If you don't know how to knit in the round the videos here
would be a good place to start.
Search "Silver's Sock Tutorial" it will come up in search engines. I saved it so I could change it because the background wasn't friendly to my eyes/migraines, so I don't have the link handy either.
Being a guy wanting socks for myself seems to have left me making up my own patterns.
Even if you want to follow patterns these links may help teach you to knit socks automatically or at least be able to adjust a pattern.
I also find this method to be fun. http://www.knitty.com/ISSUEfall06/FEATextreme2in1.html