There are many sources of public domain work online, and we've listed some of our favorites below.  When exploring public domain works online, please remember that just because an online source claims something is in the public domain, there's no absolute guarantee that it is!  Use your common sense, and refer to Peter Hirtle's public domain chart.  Also, even when an original work is in the public domain, there are separate copyrights that apply to any creative work done in translating from the original. So, a post-1923 translation of the Odyssey, for example, is probably still under copyright, even though the Odyssey is thousands of years old!