Project Gutenberg was the first provider of free electronic books, or eBooks. Michael Hart, founder of Project Gutenberg, invented eBooks in 1971 and his memory continues to inspire the creation of eBooks and related technologies today.A Review of the Frogs of the Hyla bistincta Group by William Edward DuellmanAuthor: Duellman, William Edward, 1930-,Language: English, Class: QL: Science: Zoology, Release Date: Jun 2, 2010