Users are organized into groups, with the assumption that members of a group have something in common (for example, they are members of a family, or of the local quilting club). A user can belong to multiple groups.

Generally speaking, there are two types of groups: those of which you are a member, and all the others. This is a fundamental distinction in Floopstreet, because it controls the visibility of items. However, two groups can link to each other, thereby defining a relationship that is less tight than among members of one group; see below for more.

The administrators for two groups can agree to link the two to each other; this new relationship opens a (wider) visibility window between the two, and is meant to express a looser relationship than the one among members of the same group. For example, two families who know each other have created their own groups, and then linked them to indicate to Floopstreet that the two are expected to share some (but not necessarily all) activities. Members of either family make most items visible internally to the group, while also widening access for others to the linked group (for example, to let the other family know about an amusement park they recently visited). Personas help the process of managing visibility settings.

There is no limit; however, Floopstreet is designed to manage smallish groups, corresponding to the various connection classes in your life, and therefore large groups (over 50 users or so) are not recommended.

No; Floopstreet is designed to operate at the group level, and therefore it requires that each user be a member of a group. If you really want to be a single user, you can always create a group containing you as the only member.

There are a number of ways to become a group member:

• When you create a group, you must specify a user that will be the group's first member and its administrator. This can be an existing user, or a new one created with the group.
• A group's administrator can send you an email containing an invitation to join it; if you accept the invitation, you become a member of the group. If you are not yet a Floopstreet user, you can create a new user when accepting the invitation.
• You can ask a group's administrator to join a group; if the administrator approves the request, you become a member of the group. Note that join requests imply that you are already a Floopstreet user.

No; Floopstreet won't let you become a member of a group unless the group administrator has approved it (ahead of time by sending you an invitation, or at the time of your request). If you make a request, you may be asked to create a user, but you won't be able to log in until the request has been approved.

Only if you are the group administrator.

Yes, a group administrator can designate additional ones.

Yes.