Electronic books or ebooks can be found using WorldCat when you limit your results to ebooks.
The catalog also includes ebook titles from Springerlink -- that can be read from your browser.
Free ebook sources include:
ProQuest Ebook Central ebooks can be downloaded to iPads and other ebook reading devices for a 14 day loan period.
Runs within your web browser to display the ebook. Click on Read Online to view the title in your web browser.
Download an entire document as an e-book in Adobe Digital Editions