Go get the latest Cites and Insights. In it you will find many wonderful things including good reporting on the INDUCE Act, some thoughts on “dead media” and this nifty tool to at least help you ascertain whether US copyright has been renewed for a book or not.
This form searches the U. S. copyright renewal records. Any book published during the years 1923-1963 which is found in this file is still under copyright, as are all books published after 1964 (although until 1989 they still had to have proper notice and registration). Books published before 1923, or before Jan. 1, 1964 and not renewed, are out of copyright. This file does not contain listings for music, movies, or periodicals.