Vizu is the company behind Ad Catalyst, a digital ad effectiveness measurement system that goes beyond counting "clicks" to measure how online ads impact viewer perceptions of key brand attributes. Ad Catalyst is the Internet’s premier brand ad measurement system, providing real-time insights into the performance of an ad campaign along numerous key dimensions.  Many of the Internet's premier publishers, networks, and leading digital ad agencies use Ad Catalyst to make sure that they deliver the most efficient, effective advertising to their brand clients.