Patent ID: 8880609

Claim:
A method, comprising: recording logical relationship information describing one-to-one logical relationships between a first user and other users, the logical relationship information associated with a social networking service; receiving content from a first user device of the first user, the content having been generated by the first user device and having metadata; receiving content from a second user device of the second user, the content having been generated by the second user device and having metadata; based on the metadata from the first user device, the metadata from the second user device, and a determination that the content from the first user device and the content from the second user device were received within a preset amount of time of each other, creating a first user group having the first user and the second user as members; determining, at a server using at least one processor, whether to remove the first or second user from the first user group based on the logical relationship information and the content from the first user and the content from the second user; and adding a third user to the first user group, the third user having no logical relationship with either the first user or the second user in the logical relationship information.