42 Computer services, namely providing access to an index in the World Wide Web which organizes and indexes widespread Web-Sites, Newsgroups and other sources to establish easily traceable fields of reference; providing information and investigations, in particular for the tracing of private and commercial users and offers in multifunctional data networks being publicly accessible world-wide like for example the Internet; computer dating services, namely providing of information and contact between offerers and users of the Internet; electronic postal services; services of an Internet provider