This site has plenty for businesses investigating internet advertising as a marketing vehicle. The IAB is growing in importance as a trade association for the young internet advertising industry, and much of the content (though well hidden) provides a valuable resource. Archives features research into the effectiveness of internet advertising and Website traffic figures provide figures for a large range of major sites. The IBA stresses figures are for page traffic not reach or frequency. There are also Case Studies of major internet ad campaigns and competitions, in addition to comprehensive company listings and FAQs.