38 Providing on-line chat rooms for transmission of messages among computer users concerning telephone, address and electronic mail contact directory information to assist users to locate former and current classmates, friends, family, military service personnel, interest group members, acquaintances, and colleagues; providing on-line electronic bulletin boards for transmission of messages among computer users concerning telephone, address and electronic mail contact directory information to assist users to locate former and current classmates, friends, family, military service personnel, interest group members, acquaintances, and colleagues; electronic mail services