The open competition for the design of an extension to Asplund’s Stockholm City Library is still open for registrations (Swedish Association of Architects, free registration). The information for competitors is excellent, particularly the competition brief pdf which contains drawings, photographs and historical information. DWG files of the site are included for CAD users. Even if you decide not to enter, the competitor’s pack is worth studying. The closing date for the first stage of the competition is 27 October 2006.