This link titles all the episodes, and what songs were featured in the episodes.
It is only for Season 1 and 2 of Laguna Beach: The Real OC.
*Does anyone know the song for the trailer of Season 3. It starts 2 minutes and 25 second into the song and is the last song played in the trailer. The lines include "I never knew it could be so easy... I'm ready for a change today.... "