1:by type of Participants
| Type | Overview/Example Scenario | Feature Novelty | Challenge | Negative | Related |
| Personal+Unknown Auidiences | Temporary use/occupation of public thing (drawing of a user is under a streetlight and being spotlighted) |
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| Personal, with stalking | Follow someone |
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| Inter Personal(Between Known) | Send and receive messages | ||||
| Inter Personal(Between Strangers) |
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| Collective | twitter #here. mood,topic and speed of the place |
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| With curatorial selection | Selected user(s) use the system. Others watch it? |