GIL-Find is the UGA Libraries' catalog for locating books, ebooks, plays, journals, and some media in the Main Library, Science Library, and Special Collections. GIL-Find also lets you search (and borrow from) the other libraries in the University System of Georgia -- just change the search option from "University of Georgia" to "University System of Georgia." When searching by subject, keep in mind that the Library of Congress cataloging system uses the phrase "motion pictures" to describe films with a few exceptions ("silent films," "documentary films").
Ebook Central (ProQuest) and Ebook Collection (Ebsco) are two of the UGA Libraries' major sources for ebooks. Although ebooks are listed in Multi-Search and GIL Find, searching in these databases allows you to search within the full-text of the book. For help viewing and downloading ebooks, see this guide.
WorldCat is a shared catalog of books owned by libraries worldwide, although the majority are in North America, Great Britain, and Western Europe. Use the Advanced Search to search by subject. Can't get the book at UGA? See your options here.
Google Books and HathiTrust are projects that digitize print collections in a number of major university libraries. Both are useful in mining the contents of books on library shelves. Some of the books are out of copyright and may be read online. Others are still within copyright and can only be viewed in snippets, but you may still search for keywords within them. Once you've identified a book you need, if it's not available online click on 'Find in a library' or search GIL-Find.