- Centor Comics
- Catalog of comics, complete sets and story arcs, ashcans, non-sports and sports cards, promotional posters, and vinyl record albums.
- Ken Pierce Books
- Favorite comics from the past. Terry and the Pirates, Prince Valiant, Li'l Abner, The Phantom, Little Orphan Annie, Batman, Superman.
- Mayhem Comics and Collectibles Online
- Comic books, role playing games and supplies, collectible card games, t-shirts, anime and toys
- Metropolis Collectibles, Inc.
- Offering a wide array of vintage comics. Includes market information, and event calendar.
- Underground Collectibles
- Underground comix, posters, books, original art, prints, and other counterculture related items from the 60s and 70s.