General resource with timely articles and free price guides.
American Society of Appraisers
Visit this site to find an expert appraiser in your area. Search for appraisers by their specialty.
The official website for the National Association of Collectors and Association of Collecting Clubs. Offers information on patents, conventions and events, appraisals, and flea markets around the world.
Browse, explore and research the world of antiques, memorabilia and collecting. Sign-up for newsletters in your area of interest.
Buy, sell, or get pricing information on hundreds of categories of collectibles. Offers informative buying guides under "Community".
Ephemera Society of America
The Ephemera Society of America, Inc. is a non-profit organization formed to cultivate and encourage interest in ephemera and the history identified with it; to promote the personal and institutional collection, preservation, exhibition, and research of ephemeral materials; and to serve as a link among collectors, dealers, institutions, and scholars (from the website). Find news and articles, exhibit information, resources and more on this site.
The oldest and most established antiques and collectible online trading community.
Bid on auctions live online. Search for items by category or geography and catch up on the latest auction news.
The go to source for information on antiques and collectibles. Must subscribe for premium content but prices, marks and other resources are free content.