The resources we have listed below are some, among many, locations where data can be accessed and/or deposited in discipline-specific repositories.
arXiv for mathematical and physical sciences
UK Data Archive for Social Sciences and Humanities
The National Library of Medicine (NIH) has listed repositories that make data accessible for reuse and are open for both submitting and accessing data in different types of data (e.g., Genomic Data)
Other discipline-specific repositories are provided by Scientific Data or by PLOS journals