The Digital Public Library of America is a consortium of libraries, museums, and archives that provide free information as “one national library”. A search box is provided to look for information by subject, author, or title, although it is more likely that you will find older titles by author. Exhibitions, maps, images, and timelines can also be searched. Most of the books and reports seem to be full text on the site.
EasyBib is a bibliography and citation generator. Just type in your book title, newspaper, database, website, or journal and it will provide a WorksCited page in MLA, APA, or Chicago/Turabian style from their manuals. Each bibliography has a choice of being printed, saved, copied and pasted, or e-mailed to your paper or document.
The site also has an app for I-Phone and Android phones. This app allows you to scan the ISBN number of a book and it will automatically produce a citation for that book.