A database server contains pointers to useful information, such as on the World Wide Web. Users of the server may have hypertext links added automatically into documents they submit. Users may additionally contribute to the link database, thereby extending it, and may add additional qualifying information...http://www.google.com/patents/US7233950?utm_source=gb-gplus-sharePatent US7233950 - Method and apparatus for facilitating use of hypertext links on the world wide web
