computer services for computer networks and global communication networks, namely, user identification, registration and authorization services; automating login procedures to access web sites or intranets; security services; services for maintaining user privacy; providing communications by and between users; designating user groups to allow members of a group to share information and data; providing directory services; maintaining user profiles; maintaining server profiles; searching and locating information; providing notifications to users; computer services for use in and to facilitate electronic commerce; publishing services; providing electronic advertisements; providing chat rooms and user forums; tracking use of web sites and intranets and generating reports concerning such use