A community-defined and managed communication network is provided. The community-defined and managed network includes creating a profile for a user of the network that includes a user-selected attribute and identifying a relationship between the attribute in the profile and data external to the profile. The identification includes analyzing user community-generated descriptors of the attribute and searching the external data for common descriptors. The community-defined and managed network further includes initiating an activity responsive to the analysis, which includes one or more of: prompting the user to invite a second user who is not a registered member of the communication network to join the communication network; prompting a third user to evaluate the user with respect to the attribute; and prompting the user to initiate a communication with a fourth user who is a registered member of the communication network.