Santa Barbara-based Fastclick.com announced that it has added a new Publisher Information Center designed to help its customer understand how to use the Fastclick Ad Network. The new service provides tutorials on using the company's services. In addition, the company said that it is now supporting 180x150 and 300x600 IAB standard ad unit formats. The new formats give Fastclick.com the full set of IAB standard ad sizes, which are designed to make it easier for advertising buyers to plan and buy packaged advertising space.