Hackernews, from l0pht, soon both merging into @Stake. SecurityFocus.com, another good site, hooooorrrrible interface, home of Bugtraq. WireTrip.net, home of Rain Forest Puppy, and a few other good sites, technotronic. OpenBSD.org, even if you don't use BSD, go get OpenSSH, now. cr.yp.to Yeah, he's an egomaniac, I dare you to crack DJBDNS and Qmail though. Nortel. I've used several Contivity IPSEC VPN switches, these things are great.