Here's a collection of well written guides to our great hobby. Starting with a series of guides over at the Realm of the eFed Knights (EFK).
"Tricks of the Trade: General RP'ing Tips"
"Behind the Scenes: The OOC Articles"
"Know Your Role: Character Development"
"Time to Play the Game: The Art of RP'ing"
"Vince Russo = FAIL: The EFK Guide to Booking"
"Douchebaggery 101: Your Guide to Heels"
"Say Hello to the Good Guy: Your Guide to Babyfaces"
"A Method to the Madness: Formulating a Feud"