Adzerk is an advanced advertising platform. It was spun-off into Adzerk LLC in 2009.

Zerk Media is focused on buiding niche advertising networks on the adzerk platform. It was spun-off into Zerk Media in 2009.

22books is a site focused on finding, creating, and sharing book lists. 22books was written using Ruby on Rails and launched in December of 2007

VisualStudioHacks.com a companion site to the book of the same name, feature articles, tips, and tricks about Visual Studio