| Merchants' groups |
| Bills or church groups |
| Elite groups |
| Acting groups with many well-known actors |
| Groups with marching orders? |
| Disorderly groups |
| The human tendency to see meaningful patterns in random groups of information |
| Medieval merchants' guild |
| Alpaca groups |
| High-status groups |
| Merchants' guild |
| Alumni groups |
| Groups' tenets |
| Coll. groups |
| First groups of invitees |
| Sale-goods groups |
| Groups of acquaintances |
| Groups' havens |
| Unorthodox religious groups |
| Age groups |
| Devil-worshiping groups, e.g. |
| Religious groups |
| Groups of elephants |
| Behavioral tendency of people in large groups |
| Roundup groups |
| Unruly groups |
| Groups with fringe benefits? |
| How tour groups move |
| Preferred groups |
| Groups that have adapted to their environments |