A wireless network data resource for the research community. You must register to use this.

Nearly 10,000 publicly available scientific datasets.

Open research repository.

Searches across data collections from more than 200 institutions, researchers, and research centers. Not all data are freely available.

"Social, behavioral, and health sciences research data."

Includes social networks, Wikipedia networks and metadata, and data from online communities such as Flickr.

A collection of databases, domain theories, and data generators that are used by the machine learning community for the empirical analysis of machine learning algorithms. Examples: Noisy office; wine quality; poker hand; Internet advertisements.