WRDS - Wharton Research Data Services Note: Wharton username and password required to use WRDS.
· comScore. Consumer behavior for Internet users in the US. Yearly statistics on Demographics, Sessions, and Transactions available from 2002- present.
· DMEF Academic Data. (NOTE: archived data) Buying history for 100,000 + customers of major catalog and non-profit businesses, from the Direct Marketing Educational Foundation.
· CENTRIS. (NOTE: archived data) National database that continuously collects household information on the choice and use of voice, video, data and electronic products and services. CENTRIS tracks over 75 communications, entertainment