Searches for data in repositories across the web. Make sure you check that the data is coming from a reputable source (look for .gov and .edu web addresses or times the data was cited by scholarly publications)
The goal of re3data is to create a global registry of research data repositories. It covers research data repositories from different academic disciplines for the permanent storage and access to datasets. It also aims to promote a culture of sharing, increased access and better visibility of research data.