FreeRTOS
   Growing article, with links to many related topics. Wikipedia.
   http://en.wikipedia.org/wiki/FreeRTOS

FreeRTOS Real Time Kernel
   Project page: news, forums, support, CVS, bug reports, feature requests, statistics. SourceForge.
   http://sourceforge.net/projects/freertos/

Wittenstein High Integrity Systems
   High integrity engineering design, development, production; focus: software, safety critical engineering of software and systems; makes and supports FreeRTOS variants SafeRTOS, FreeRTOS-pro. Bristol, UK.
   http://www.highintegritysystems.com/