Social media data provider Gnip today unveiled a brand new partnership: Blogging service Tumblr will be providing its full firehose of public social data available to the Boulder-based data mining company in an exclusive deal. The Tumblr arrangement will provide Gnip clients access to Tumblr’s over 70 million posts per day, providing a much more complete picture of the social web on top of the company’s existing data sources, including Twitter, WordPress, and Disqus.

Gnip has been adding data sources at a very fast rate, including China’s 300 million-user strong Sina Weibo, and company President and COO Chris Moody told BetaKit in an interview that all that growth is about meeting the needs of its customers, who increasingly want to see what’s being said about the brands they serve, wherever and whenever they’re mentioned.