- The Breaks: searchable database of samples used in pop music.
- The Amen break: the most frequently used sampled drum loop in hip hop (with sample).
- 20 minute historical video of the Amen break.
- Most prolific film composers.
- The Functions of Film Music.
- The role of video game music.
- Classical Theme Music in Radio, TV and Film.
- Classical Music in Cartoons, Movies, Commercials: a list of tracks where children are most likely to have first heard them.
- A comprehensive organ roll list.
- Identifying a record by its grooves.
I think the best classical-music-at-the-movies site was bohemianopera.com, but it’s down. You can still see much of it at archive.org, though: