ArchiRADAR

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

Arcadia Digital Design

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

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/

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/

Graphisoft R&D Software Development Rt.

The developers of the architectural CAD software ArchiCAD and the facility management system ArchiFM.
http://www.graphisoft.com/

Arexline

Developers of third party ArchiCAD Add-Ons and GDL Objects.
http://www.arexline.com/