If you want to re-use existing data as part of your work, there are a number of resources that can be used for searching and retrieving datasets.
- UCL Research Data Repository is the institutional, generic data archive which is fully openly accessible.
- Zenodo is a general purpose data repository that is used by research groups to share all kinds of data (although is primarily geared towards science and technology subjects).
- re3data.org is a registry of data repositories, across science, social science and humanities subject areas and can be used to hunt for a repository that specialises in the kind of research.
- The Open Access Directory maintains a list of Open Access data repositories.
- The UK data archive stores social science data, and includes sensitive material under controlled access.
- DataCite is a searchable catalogue of databases and repositories.