FreeBSD is a modern open source operating system for servers, desktops, and embedded systems, based on over 30 years of continuous development. The FreeBSD Project has participated as a mentoring organization in Google Summer of Code each year since the program's inception in 2005. This year, FreeBSD mentored 18 students with a final success rate of 89%. The cumulative total over 6 years has been 117 students improving FreeBSD. This participation in the program has brought many new features into FreeBSD, several new long-term committers to the project, and many of the former students have by now joined some of the mentors as colleagues at their respective companies.
A complete list of FreeBSD Projects is available from the wiki.