Other public domain searches and indices
Appropedia's Public Domain Search is intended to be as complete as possible. However, there are some results which can't be included for technical reasons. These are listed here.
- The Google books search for books that are marked off as "Full View" books in Google, which in theory should mean they are public domain.[verification needed] However, sometimes these have a "Copyright material" watermarked. In any case, make sure of the copyright/public domain status before using the content.
- Internet Archive search - more reliable results. It is hoped to include results from this in Appropedia's Public Domain Search.