The Kame Project - Project to develop IPv6 and IPsec stack for use in BSD-based operating systems. Included in the OpenBSD sources since OpenBSD 2.7 Release.
OpenBSD - owc / odc - Mailing lists hosted by Squish.net that collate the OpenBSD source-changes and email summary reports daily or weekly.
OpenBSD commit stats - Statistics on the number, type, and originator of commits to the OpenBSD CVS repository.