sort by Rank | Alpha
| Possible Meanings | Rank |
|---|
| Center for Big Bend Studies | ** |
| Caribbean Big Boat Series | * |
| Christian Basics Bible Study | * |
| Criteria Bulletin Board System | * |
| Calculator Bulletin Board System | * |
| Channel Bulletin Board System | * |
| Chatlink Bulletin Board System | * |
| Citadel Bulletin Board System | * |
| Commerce Bulletin Board System | * |
| Cyberdelic Bulletin Board System | * |
| Cyberplay Bulletin Board System | * |