[DISCUSSION] Does anyone know any sites that feature song analysis and explanations?

I remember I've read somewhere an interview with Hetfield and Hammet explaining the songwriting process of some of their songs, and it was really interesting. Just getting into another musicians head to see how he got his ideas and how he developed them is a really learning experience.

Does anyone know any sites that feature song analysis and explanations? And I'm talking about analysis of the solos, chord progressions, structures and musical stuff.