libdispatch

Apple's Grand Central Dispatch has been ported to FreeBSD

google code

List of projects i found interesting:

http://code.google.com/p/google-guice/

http://code.google.com/p/protobuf/

http://code.google.com/p/google-sparsehash/

http://code.google.com/p/wave-protocol/

http://code.google.com/p/pywebsocket/

http://code.google.com/p/google-coredumper/

http://code.google.com/p/google-glog/

http://code.google.com/p/google-breakpad/

http://code.google.com/p/google-url/

http://code.google.com/p/google-perftools/

http://code.google.com/p/google-gflags/

http://code.google.com/p/google-ctemplate/

http://code.google.com/p/google-mysql-tools/

http://code.google.com/p/googletest/

http://code.google.com/p/googlemock/