PROFESSIONAL ORGANIZATIONS

The Ephemera Society of America A non-profit organization formed in 1980 to cultivate and encourage interest in ephemera and the history identified with it; to further the understanding, appreciation, and enjoyment of ephemera by people of all ages, backgrounds, and levels of interest; to promote the personal and institutional collection, preservation, exhibition, and research of ephemeral materials; to serve as a link among collectors, dealers, institutions, and scholars; and to contribute to the cultural life of those who have an interest in our heritage as a nation or a people, both nationally and internationally. 

    Independent Online Booksellers Association Dedicated to promoting independent online bookselling by maintaining and enforcing high professional standards among our international membership, backed up by a strong Code of Ethics, and creating trust between customers and booksellers by providing a safe online environment for the sale and purchase of books. 

REFERENCE

 WorldCat An excellent source searching for popular and out-of-print books, music CDs and videos that are available in libraries throughout the world.  One can also discover many new kinds of digital content such as downloadable audiobooks. You may also find article citations with links to their full text: authoritative research materials, such as documents and photos of local or historic significance: and digital versions of rare items that aren't available to the public.