The hub of firms' online marketing strategies, Web analytics is now expanding to handle other analysis tasks and customer data sources. To assess the state of the Web analytics market and see how the vendors stack up, Forrester evaluated the strengths and weaknesses of top Web analytics vendors across 106 criteria. The result: offerings from Coremetrics, Omniture, Visual Sciences, and WebTrends are best suited for large-site deployments. Included in this report is an interactive vendor comparison tool that provides detailed product evaluations and customizable rankings.