Here's a note from Shelly Bolejack about where to find Thinking Devices:
Just wanted you to know about something I discovered with a teacher today. Since music and lyrics can be used as Thinking Devices, have your teachers check out Pandora's Box or jango.com on the internet. You can put in an artist or genre and get many different selections of music.
We were looking for blues music, and it's a terrific resource since we can play it directly off of her computer.