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Articles & Databases

DataCite
A registry of research data repositories. [More about DataCite] 

Datahub
Data-management platform from the Open Knowledge Foundation. [More about Datahub] 

DataZoa
Save, share, and analyze time series for public economic data. [More about DataZoa] 
Create a personal account at the DataZoa login page.

National Historical Geographic Information System (NHGIS)
Aggregate census data and GIS-compatible boundary files for the United States between 1790 and 2010. [More about National Historical Geographic Information System (NHGIS)] 
Users must register in order to download data (registration is free).

re3data
A registry of research data repositories. [More about re3data ] 
By the end of 2015, re3data will merge with Databib under the name DataCite.

Social Explorer
Provides easy access to current and historical census data and demographic information for the United States. [More about Social Explorer] 

Statista
General quantitative data on an easy-to-use searchable platform. [More about Statista]