He's been doing the Advertorial thing for a while now:

http://www.codinghorror.com/blog/2009/06/regular-expressions...

http://www.codinghorror.com/blog/2008/03/adventures-in-recha...

http://www.codinghorror.com/blog/2008/11/coding-its-just-wri...

http://www.codinghorror.com/blog/2007/09/lcd-monitor-arms.ht...

http://www.codinghorror.com/blog/2007/04/software-projects-a...