| ID | Interpret | Skladba | Album | |
| 181. | Charles Darwin, M.A., F.R.S. | 06B: Difficulties of the Theory - Part 2 | The Origin of Species by Means of Natural Selection |  |
| 182. | Michael Kraskin and David Terry | Episode 32 - The Theory of Bisociation | Catalogue of Ships | |
| 183. | Charles Darwin, M.A., F.R.S. | 06B: Difficulties of the Theory - Part 2 | The Origin of Species by Means of Natural Selection | |
| 184. | David Schafer | General Theory Expo | General Theory Expo | |
| 185. | Systems Theory | Systems Theory Concentrate #2 | | |
| 186. | Jörg Guido Hülsmann | Theory of Money and Credit | The Life, Times, and Work of Ludwig von Mises | |
| 187. | Hot Puppies | Love In Practice, Not Theory | Under The Crooked Moon | |
| 188. | Diefenbaker | Chaos Theory in the Kitchen | First Demo (LP) | |
| 189. | Hot Puppies | Love In Practice, Not Theory | Under The Crooked Moon | |
| 190. | Professor Ian Stewart | Strings, symmetry and a theory of everything | A short history of symmetry | |
| 191. | William S. Burroughs | Origin and Theory of the Tape Cut-Ups | Break Through In Grey Room | |
| 192. | David Schafer | General Theory Expo | General Theory Expo | |
| 193. | Jay Mac | Low End Theory September 2007 | | |
| 194. | Big Bottom Pow Wow | Sperm Count Theory | Big Bottom Pow Wow | |
| 195. | Paradise Camp 23 | Theory Megatron [excerpt] | oTo | |
| 196. | In The Nursery | Error Theory [PREVIEW] | Praxis | |
| 197. | Charles Darwin, M.A., F.R.S. | 06A: Difficulties of the Theory - Part 1 | The Origin of Species by Means of Natural Selection | |
| 198. | David Schafer | General Theory Expo | General Theory Expo | |
| 199. | Collapse 7 | Gravity Collapsing Theory | Demo 2005 | |
| 200. | Perry Marshall | Information Theory, DNA & Evolution | | |
