65. A system as claimed in claim 37 , wherein the database includes network community data from users interacting with a network portal or site, with the system further comprising: a central database formed of a plurality of such databases; a plurality of servers which read the central database; at least one highly optimized index of the data in the central database, where the index is created by and stored on a first server; replicas of said index which are created by the first server and are stored on servers other than the first server.
65. A system as claimed in claim 37 , wherein the database includes network community data from users interacting with a network portal or site, with the system further comprising: a central database formed of a plurality of such databases; a plurality of servers which read the central database; at least one highly optimized index of the data in the central database, where the index is created by and stored on a first server; replicas of said index which are created by the first server and are stored on servers other than the first server. 66. A system as claimed in claim 65 , wherein the indexes created include Content, People, Groups, and Events.