While not all of these sources are free and open, the vast majority are, and they are nicely arranged by broad subject areas.
Data sources and resources from Cowles Library!
Sage Data (formerly Statistical Datasets) is a web-based research tool that provides fast and easy access to data from licensed and public domain datasets within a single interface.
Online statistics portal providing access to data from market and opinion research institutions, as well as from business organizations and government institutions. Includes many easily-cited authoritative infographics.
