Cluster is an app by Cluster Labs for creating private group spaces comprised of those relevant to whatever the group’s purpose is so that other social networks aren’t clogged with irrelevant material. For example, a user could create a specific space for friends, one for family, one for neighbors, and so on. Only those invited to a space can view the posts within. Cluster 2.0 recently launched with tablet and video support.
images via Cluster
via Kevin Rose