These resources can help you browse and search the hundreds of subject and institutional repositories or archives across the world.
This is a very brief list of institutional data repositories to give you an idea of the wide variety of data available from these resources.
Subject repositories typically have a disciplinary or topical focus. Examples include the National Center for Biotechnology Information GenBank, dbGaP, and Minnesota Population Center are all subject repositories. For a more comprehensive list of repositories, see the Re3Data Index.