Computer Method and System for Determining Expert-Users in a Computer Network

A computer method and system for ranking computer network portal users is provided. The system and method comprise a ranking module which determines rank of an individual in a community of global computer network users. The ranking module determines rank of an individual as a function of user demand. The function of user demand includes any one or combination of number of requests to be connected to the individual user, readership following of the individual user and keywords common between profiles or authored works by the individual user and those of other users. An output member is coupled to receive the determined rank from the ranking module and generates an ordered list of user names ordered by determined rank of individuals. The rank of individuals may be provided to external entities such as fraud detection systems or advertising targeting engines.