Integrated CADD Services  
   Provides ArchiCAD based solutions for architects.
   http://www.intcad.com/

GDL Alliance  
   An independent, international professional association consisting of GDL authors, software developers, and building product manufacturers.
   http://gdlalliance.com/

arkiKlub  
   A resource site for ArchiCAD users, including tutorials, tips and tricks, downloads, online support, and discussion forums for registered members.
   http://www.arkiklub.com/

ArchiRADAR  
   Resource site for ArchiCAD users, with GDL objects, and a mailing list [more information in italian language].
   http://www.archiradar.com/

Objects Online - ArchiCAD  
   A catalog of 2D and 3D objects and symbols for ArchiCAD with online ordering.
   http://www.objectsonline.com/arc/default.tpl

The Australian ArchiCAD User Group  
   The AU Group offers training, tips and tricks, downloads, tutorials, user group meeting information, galleries and links.
   http://www.theAUgroup.com/

ArchiCAD Webring  
   A list of ArchiCAD related sites.
   http://X.webring.com/hub?ring=archicad

GetStandardized.com  
   Featuring a template system, an object library, and free tutorials for ArchiCAD.
   http://www.getstandardized.com/

Arcadia Digital Design  
   ArchiCAD based application for exhibition designers with free demo, and object libraries for exhibition and kitchen design.
   http://www.addnewideas.com/

The Object Shop  
   A catalogue of GDL models aimed primarily at the construction and 3D modelling industries.
   http://www.teamweb.co.uk/theobjectshop/