Computational Advertising
Computational Advertising is in a nutshell the engineering, math, and psychology behind the creation of technology for computer backed advertising, such as online advertising.
I have been involved in computational advertising, creating and enhancing ad network technology, since February 2004, when I first got involved with BidClix. This experience continued with Accipter, aQuantive / Atlas Solutions, and then with 49 Research where most of my work went under NDA, creating and enhancing ad network technology for various undisclosed clients.