| ID | Interpret | Skladba | Album | |
| 121. | Ed Frawley | theory of motivation | Ed Frawley's Album |  |
| 122. | Lame Duck | Chaos Theory | Chaos Theory | |
| 123. | DrMindbender | Chaos Theory | 02 01 06 | |
| 124. | DrMindbender | Chaos Theory | 02 01 06 | |
| 125. | Wobbly | final theory | Media Joke v6 | |
| 126. | Wobbly | food theory | Media Joke v6 | |
| 127. | Thom Donovan | Hole Theory | Reading at Unnameable Books, hosted by Brenda Iijima, January 24, 2009 | |
| 128. | Dr Kuch | The Big Bang Theory | Analog Disease | |
| 129. | Dr Kuch | The Big Bang Theory | Analog Disease | |
| 130. | AFI | Sacrifice Theory | The Art of Drowning |   |
| 131. | Isis | Theory/Practice | http://isis.arithmancy.net | |
| 132. | Sky Pilots | Prospect Theory | Sky Pilots | |
| 133. | DonJuan Fontaine | Theory In Development | Microphone Matrimony | |
| 134. | Noso-Roh Prophecy | Spiral Theory | | |
| 135. | Miami Horror | Moon Theory | http://this.bigstereo.net/ | |
| 136. | Miami Horror | Moon Theory | Illumination | |
| 137. | GamerChris | GamerChris Sings I've Got A Theory | Look Who's Back | |
| 138. | Roger W. Garrison | The Austrian Theory: A Summary | The Austrian Theory of the Trade Cycle | |
| 139. | 16Bit.FM | DJ Rus @ The Theory of Soul & Sound 10.04.08 | Radio 16Bit.FM Liveshows | |
| 140. | Roger W. Garrison | The Austrian Theory in Perspective | The Austrian Theory of the Trade Cycle | |
| 141. | Jörg Guido Hülsmann | Theory of Money and Credit | The Life, Times, and Work of Ludwig von Mises | |
| 142. | Roger W. Garrison | The Austrian Theory: A Summary | The Austrian Theory of the Trade Cycle | |
| 143. | Charles Darwin, M.A., F.R.S. | 06A: Difficulties of the Theory - Part 1 | The Origin of Species by Means of Natural Selection | |
| 144. | Roger W. Garrison | The Austrian Theory in Perspective | The Austrian Theory of the Trade Cycle | |
| 145. | Charles Darwin, M.A., F.R.S. | 06B: Difficulties of the Theory - Part 2 | The Origin of Species by Means of Natural Selection | |
| 146. | Charles Darwin, M.A., F.R.S. | 06B: Difficulties of the Theory - Part 2 | The Origin of Species by Means of Natural Selection | |
| 147. | 16Bit.FM | DJ Rus @ The Theory of Soul & Sound 27.11.08 | Radio 16Bit.FM Liveshows | |
| 148. | WordTheCat | archbishop-spatial-theory | www.wordthecat.com | |
| 149. | WordTheCat | archbishop-spatial-theory | www.wordthecat.com | |
| 150. | In The Nursery | Error Theory [PREVIEW] | Praxis | |
