| Subtopic | Msgs | Last Updated | |
| Xenotransplantation | 9 | 12/08 03:05pm |
| Napster | 13 | 09/20 01:38am |
| Legalizing Illegal Drugs | 21 | 03/02 05:39pm |
| Stem Cell Research | 12 | 09/13 09:44am |
| Voices of Wisdom - A Multicultural Philosophy Reader | 33 | 08/18 10:22am |
| Invitation to Critical Thinking (with InfoTrac) | 58 | 08/24 02:13pm |
| Twenty Questions - An Introduction to Philosophy | 205 | 11/15 01:29am |