Some of my favorites:

http://www.openbsd.org/
http://www.freebsd.org/
http://www.netbsd.org/
http://www.dragaonflybsd.org
http://frenzy.org.ua/eng/
http://quetzal.matem.unam.mx/
http://g.paderni.free.fr/olivebsd/
http://www.freesbie.org/
http://mirbsd.mirsolutions.de/
http://www.serverwatch.com/tutorials/article.php/3393051/
http://www.truebsd.org/
http://www.onlamp.com/bsd/
http://en.wikipedia.org/wiki/OpenBSD
http://www.bsdcertification.org/
http://blogs.ittoolbox.com/unix/bsd/archives/
http://www.openbsd101.com/
http://bsdtalk.blogspot.com/
http://www.blogger.com/
http://www.bloglines.com/
http://wordpress.com/
http://www.distrowatch.com/
http://www.videohelp.com/