The eleventh up-to-date version of the CD-ROM edition contains: information on all 33,749 organizations included in the book edition of Yearbook of International Organizations 2005/2006 information on more than 23,000 further bodies from the UIA data base about 22,000 biographies of leading personnel as published in the current edition of Who's Who in International Organizations. The user can now explore the complex network of relationships between organizations through a multitude of clickable hyperlinks. The hyperlinks, like those used on the web, allow the user to jump from one organization to another. The organizations descriptions also offer hyperlinks to biographical descriptions in the related biographical database. Besides the possibility of searching by field, the user can also search by subject, regional group or organizational group. Users of the CD-ROM who have browser software and an internet connection can contact with the organizations described. By clicking on a web address in an organization profile it is possible to go straight to their website. Clicking on an e-mail address allows the user to mail the organization immediately. There are over 70,000 verified e-mail addresses and web links.