E-book Usage Data Article

The April 1, 2009 “Off The Shelf” column features an article on E-book usage data.  The article surveyed 10 e-book vendors and aggregators for information on their usage data.  A comparative chart accompanies the article, which is only available online, on the NSR articles page.

7 vendors replied to the survey, 1 couldn’t participate due to usage data restructuring, and 2 did not reply.  The 2 no replies serve primarily the public and school library markets, so this usage chart is heavy on academic providers.