The Purdue Libraries provides access to a number of sites for data education, research, analysis, deposit, preservation, and access.
Data Storage Options at Purdue (Comparison Chart comparing/contrasting data storage options)
Purdue University Research Repository (PURR) (Libraries)
Purdue Data Depot (ITaP)
DataBib (listing of online repositories containing research data) NOW RE3data
National Science Foundation Initiative/Requirements:
Populationof.net (Demographic projections for global regions and countries)