1. A chat server comprising: an access request processor configured to receive a plurality of access requests and to associate an access time parameter to each access request of the plurality of access requests based on a time at which each said access request is received, each said access request being associated with each user of a plurality of users, a network former configured to partition the plurality of users into a plurality of subsets based upon the access time parameter associated with each said access request, and a plurality of chat networks each chat network configured to provide a communications path among each subset of the plurality of subsets.