Forrester projects that as high-tech and manufacturing marketers shift spending online, their interactive marketing spend will grow at a compound annual growth rate (CAGR) of 37% to 1.6 billion by 2012. Although still only a fraction of the total interactive marketing pie, growth in B2B investment in interactive tools signals that these marketers are moving to more measurable channels; improving existing programs; and testing online video, blogs, communities, and other social applications.