ICPSR offers curated data storage to those affiliated with member institutions, for free.
Data depositied is reviewed, cleaned, and indexed for ease of access and findability. Data used from the collection is traced via the bibilographic citation database. Restricted data is stored and access is allowed only through vetted, registered users. See the guide to start sharing data for more information.
See the PDF of the Guide to Social Science Data Preservation for more information about the process ICPSR uses.
Feel free to reach out to your ICSPR reps, Ted Baldwin or Rebecca Olson for more information.