Here are some of my favorite on-topic sites on the web:
Websites for Stories:
ASN Story Board - Obviously the best ENF story site that I've found.
Writings of Leviticus - This site is regularly updated and has a lot of good stories, including the classic Reluctant Exhibitionist.
Katie Smith Archive - This site has the Tracey Stories, some of my favorites ever!
Stuff and Nonsense - This site has went dead. If anyone has the stories, please email them to me.
All CMNF - This board is still building up its content, but it has promise.
Don Gordon's Story Archive - Good Girls, Bad Boys is one of my favorite stories, and I like his other work, too.
Blackmail and Humiliation Directory at ASSTR - It's an open directory without any descriptions, but some of these stories aren't too bad.
Indian Outlaw's Stripping Naked Discussion Forum - The discussion forum for the ASN Story Board. If you're looking for a story or want to share a cool site, post there.
One Click Chicks - If you're done reading about naked girls and want to see naked girls, this is a good place.