Things I've worked on, helped with, or still run
A "Google"-like search engine for DNS records
LetMeOutOfYour.net Egress Testing Site
Answers w00w00t for web requests on any TCP port, any request on any UDP port and responds to any subdomain or URL with the same "w00tw00t" string. This is very useful for verifying or finding ways to egress a network.
Q - Free Metasploit "Exploit Pack"
An archive of modules, scripts, plugins and extensions that for one reason or another aren't in Metasploit or can't be.
An archive of infosec related sites, packages, downloads etc that are either no longer on the net or endangered to be so.
Post Exploitation Command Lists
A bunch of community created google docs that have commands and steps for post exploitation
A network based enumeration to for Windows networks
A binary resource cloner (Icons and metadata)
A small little project ;-) - Been contributing since 2008 and using since 2005.
Started in 2009, it's a monthly meeting group of Northern Virginia, DC, and MD hackers/infosec peeps
Penetration Testing Execution Standard
A standard to help raise the bar and expectations. Just recently joined this group as support of the Post Exploitation section
Collegiate Cyber Defense Competition - Red Team
A college level defense competition where defenders are given vulnerable networks to defend against the evil Red Team - Been on the Mid Atlantic Region for 4 or 5 years, and just recently joined the National-level team
Hackers for Charity
Johnny Long (and his family)'s huge project to help Africa using technology - Been the social media / hype man for about 2 years.
This ran for a bit but has kinda died, the original idea was to get useable demonstrations of up-the-the-minute additions to the framework
A video demo site that involved not just one example but a 0 -> pwnd approach. Mostly dead due to the time it took to create each video.