HEATKEYS

CADTutor provides free video tutorials, articles, downloads and a busy community forum for users of AutoCAD and associated software.

Web portal for New Hampshire State Government

Security mailing list archive for the Nmap lists, Bugtraq, Full Disclosure, Security Basics, Pen-test, and dozens more. Search capabilities and RSS feeds with smart excerpts are available

Be Communities is a social networking site for those in the architecture, engineering, construction, operations, and GIS communities with tools such as forums, blogs, a resource gallery, and a wiki for connecting, communicating, and learning from eac...