Published LibGuides are also good resources for finding info on ebooks:
Alameda County Library LibGuide (public)
Atlantic City Free Public Library LibGuide (public)
Auraria Library eBooks LibGuide (academic)
Contra Costa County Library LibGuide (public)
David Casey Copley Library eBooks LibGuide (school)
Flint Hill School LibGuide (school)
Freading Guide: Newton Free Library LibGuide (public)
Gateway Community College eBooks LibGuide (academic)
Mohawk Valley Community College eBooks LibGuide (academic)
Kirkwood Community College Libraries LibGuide (academic)
Miami University Libraries LibGuide (academic)
Spokane Community College LibGuide (academic)
University of Central Florida LibGuide (academic)