OpenX, the open-source ad server startup, has hired Tim Cadogan, Yahoo’s senior vice president for search marketing as its CEO reports AllThingsD. OpenX gives web publishers an alternative to Google Adsense to monetize the traffic on their web site.

“With open-source software, there is a lot of potential for business disruption and to open up the market,” You have not really seen open-source models really applied to the ad space until now…but there is a big business in giving publishers a really robust offering and a platform where they can also share what they build.”