Whether you're looking for data to reuse or integrate with your research, or trying to find somewhere to deposit your own data, a relevant data repository (also known as an archive or data centre) is a good place to start.
If you want to use someone else's data, you should always:
You should always credit the original author of any data you use. There are, as yet, few standard citation conventions for data. However, the following data citation guidance, taken from the Digital Curation Centre's 'How to Cite Datasets and Link to Publications' will help:
For further information, see: 'How to Cite Datasets and Link to Publications', which also suggests elements that should be included in a data citation.
You can search all datasets that have a DataCite DOI assigned by using DataCite Commons.
The following are examples of where research data has been re-used to positive effect.
Find a repository that focuses on the types of data you work with:
If there isn't a suitable specialised repository, you could try one or more of the following more general options:
This page is informed by websites from Imperial College London and the Digital Curation Centre's guide 'How to Cite Datasets and Link to Publications'