| Tag | Number of Entries |
| Aliens | 42 |
| Apocalyptic | 3 |
| Communications | 22 |
| Demonyms | 38 |
| Dimensions | 24 |
| Drugs | 5 |
| Dystopia | 9 |
| FTL | 48 |
| Genre | 52 |
| Language | 15 |
| Paranormal | 29 |
| Propulsion | 26 |
| Robotics | 25 |
| SF Criticism | 178 |
| SF Fandom | 98 |
| Star Trek | 29 |
| Star Wars | 10 |
| Time Travel | 45 |
| Vehicles | 56 |
| Weaponry | 42 |