CamCommunities

Forums,Blogs, Wikis etc dedicated to CAM development 

Forums
CNCZone: Open Source Software

Blogs

 * http://www.freesteel.co.uk/
 * http://www.anderswallin.net/tag/cam/
 * http://heekscnc.blogspot.com/

Wikis

 * http://www.editthis.info/opencam/Main_Page

IRC

 * # cam on freenode.net