affective contagion

Complete dataset of public comments posted to Reddit (http://www.reddit.com) comments from October 2007 to May 2015.

Repository of televised news, including (for many) captions and rough statistics for content

Dataset of 8 million annotated YouTube videos, including a variety of audio and visual features.

Repository of data related to the Federal Reserve

Current and historical data on numerous financial products, including stocks and bonds

Google search data, available for download

Data on Google searches, broken down by economic sector

Data correlating Google search queries with real-world data and events, available for download

Historical data on currency exchange rates