GDC publishes a quarterly newsletter called The Cornerstone. The most recent version along with many archvies are located here.

Cornerstone Summer 2007
This issue includes stories on Avant Chelsea and Middlebury, CT.

Cornerstone Winter 2007
This issue includes features on the Hudson River Sculpture Trail and Haverstraw, NY

Cornerstone Summer 2006
This Cornerstone includes stories on Riverbend and Ichabods Landing

Cornerstone Fall 2005
This issue includes articles on GDC's new corporate offices.

Cornerstone Spring 2005
This edition features......

Cornerstone Fall 2004
This edition features....

Cornerstone Summer 2004
This edition features...