[BridgeArt.net] Resources for structural and bridge engineers, including database of AEC software, news monitoring, and structural wiki.
[piclist.com 2000 member mailing list of engineers devoted to the Microchip PIC microcontroller]
[massmind.org All the engineering secrets worth knowing! Also a wiki]
[sxlist.com Devoted to the Ubicom/Parallax SX microcontrollers: High speed PIC clones]
[Engineering wiki covering topics in the PE Exam including Examples & Equations]
[Engineering job board covering all disciplines]