The National Digital Stewardship Alliance has released Web Archiving in the United States: A 2016 Survey .
Here's an excerpt from the announcement:
From January 20 to February 16, 2016, a team representing multiple NDSA member institutions and interest groups conducted a survey of organizations in the United States actively involved in, or planning to start, programs to archive content from the Web. This effort built upon a similar survey undertaken by NDSA in late 2011 and published online in June 2012 and a second survey in late 2013 published online in September 2014.
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