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\section{Introduction}  In the original Google Books Settlement Agreement in 2008 \cite{Courant_2009}, funds were to be set aside to create a research center that would enable researchers worldwide to accomplish data-mining and analysis on texts in the public domain and under copyright in a manner that was secure and compliant with appropriate U.S. copyright law. This did not happen, because the court rejected the agreement in 2011. Despite this, in 2011, the HTDL announced that Indiana University Bloomington and the University of Illinois at Urbana-Champaign would run the HTRC under a cooperative funding agreement with the HathiTrust Board of Governors and the University of Michigan. Since 2014, HTRC has made available as an active production service tools to analyze a set of out-of-copyright content equaling around 4.4 million volumes. In 2016, the HTRC plans to enable analysis of the entirety of the 14 million volume corpus currently held by the HTDL. HTDL, the third largest library in North America and currently the only one fully available digitally.