Purdue University Libraries has a current list of data repositories, searchable by keyword or by browsing, see http://d2c2.lib.purdue.edu/OtherRepositories.php
Planning the Research
Create a Data Management Plan
Collect Data and Documentation
Back up data and documentation in at least three places, e.g. hard drive, thumb drive, and web space
Prepare Data For Sharing
Archiving and Preservation
DataCite, www.datacite.org, is an international collaboration of university libraries and information centers that is supporting making datasets discoverable and citeable. Digital Object Identifiers (DOI) are assigned to data by DOI Registration Agencies. DataCite and CrossRef are two DOI registrants.