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