42% of offline retailers combine online research data with offline purchase history

42% of the Web analytics buyers surveyed by Forrester Research reported importing data from other customer touch points (such as point of sale systems and call centers) monthly or more frequently, up from 23% that did so in 2004. 25% of those surveyed correlate user survey data with site analytics to build customer profiles that link attitudes with behavior. 36% said they export site analytic data to a corporate data warehouse, while 39% cross-match site registration data with clickstream data.