From: Generation of online libraries is born, PhysOrg.com
Google Book Search (http://books.google.com). By far the most known online library to date, the Google book project has scanned the pages of "thousands" of works into digital format.
Text from classics in the public domain is available in full. Summaries or snippets of books still under copyright are provided of books still under copyright protection.
A search engine taking the place of library card indexes makes it possible to seek authors' names, publication dates, or words or expressions in the texts or titles.
Open Content Alliance (http://www.archive.org/details/texts): Most open.
For the moment the library has 35,000 scanned books, mostly in English. All of the works are not copyright protected -- often more than 50 years old -- and downloadable, printable, and free to be re-used for commercial purposes. The search engine is less sophisticated than that of Google Books but can scout out reference words if the quality of the scanned pages is sufficient.
- Windows Live Search Books, an online literature search engine being developed by Microsoft Computer, is slated for release "later this year."
The Windows Live Search Books Publisher Program website (http://publisher.live.com/) invites authors and publishers send their books to be scanned.
- Gallica, the site of the national Library of France. Lists 90,000 digitized books available in "image mode" but does not feature scanning by key words wihin page text.
- Specialized websites: offer text versions of digitized works, usually classics, that can be downloaded for reading or printing and allow searches by key words.
For example the site of "complete works of Shakespeare" (http://www-tech.mit.edu/Shakespeare/) created in 1993 or the site of Molière (http://www.site-moliere.com/). Other sites highlight poetry, essays, books or other themes.