| ID | Interpret | Skladba | Album | |
| 31. | Mental Health America | Chiming In - December 2007 | Chiming In 12/07 |  |
| 32. | DogWatch Cigar Radio | DWCR No. 145 December 28, 2007 | DogWatch Cigar Radio | |
| 33. | Science Audio | JNPT v31 n4 December 2007 | The Journal of Neurologic Physical Therapy | |
| 34. | DogWatch Cigar Radio | DWCR December 22, 2007 No. 144 | DogWatch CIgar Radio | |
| 35. | Association for Career and Technical Education | TechNotes, December 2007 | TechNotes, December 2007 | |
| 36. | Association for Career and Technical Education | TechNotes, December 2007 | TechNotes, December 2007 | |
| 37. | Bengt Hamedani | One-minute vacation for December 24, 2007 | | |
| 38. | Architectural Record | Voice of Record - December 21, 2007 | | |
| 39. | Washington National Cathedral | Sunday Forum, December 16, 2007 | | |
| 40. | NOW Magazine | Issue Insight - December 6th 2007 | The Horseshoe, Volume 27 Number 14 | |
| 41. | Dobroide | One-minute vacation for December 31, 2007 | | |
| 42. | Bengt Hamedani | One-minute vacation for December 24, 2007 | | |
| 43. | Architectural Record | Voice of Record - December 14, 2007 | | |
| 44. | Washington National Cathedral | Sunday Forum, December 2, 2007 | | |
| 45. | Science Magazine | Science Podcast, 14 December 2007 | Science Podcast | |
| 46. | Architectural Record | Voice of Record - December 28, 2007 | | |
| 47. | Washington National Cathedral | Sunday Forum, December 16, 2007 | | |
| 48. | Aaron Ximm | One-minute vacation for December 4, 2007 | | |
| 49. | Aaron Ximm | One-minute vacation for December 4, 2007 | | |
| 50. | Alessandro Massobrio | One-minute vacation for December 10, 2007 | | |
| 51. | Douglas E. Welch | LIVE from the Library - December 27, 2007 | TechnologyIQ | |
| 52. | Bp. William H. Willimon and Dean Samuel T. Lloyd III | Sunday Forum, December 9, 2007 | | |
| 53. | Charlie & Shaman | Apocalypse Radio December 02 2007 | Apocalypse Radio December 02 2007 | |
| 54. | Alexander Robotnick | December 2007 DJ Mix part1 seg2 | | |
| 55. | Babylon System & Matty G | Argon Radio 9 December 2007 | | |
| 56. | Alexander Robotnick | December 2007 DJ Mix part1 seg1 | | |
| 57. | DJ Cordis | Praise Your Love - December 2007 | DJ Cordis - Praise Your Love - December 2007 | |
| 58. | Alexander Robotnick | December 2007 DJ Mix part1 seg1 | | |
| 59. | FSRN | Dial-Up Friday, December 14, 2007 | | |
| 60. | Alexander Robotnick | December 2007 DJ Mix part1 seg2 | | |
