Amazing Comic Art - Collection of Amazing Spider-Man original art. - http://www.amazingcomicart.com
Alexander, Jason: Studio Section 8 - Artist for various DC, ONI projects, including "Queen and Country" - http://www.studiosection8.com/
Adams, Neal: Continuity Studios - A selection of artwork by the influential artist best known for his 1970s work on Batman and the X-Men. - http://www.nealadams.com/
All Star Auctions - High-end original comic book and strip art, illustrations (including Frank Frazetta) and vintage comic books. They also offer an appraisal service. - http://www.allstarauc.com/
Alexander Galleries - High-end originals, including work by R. Crumb and Frank Frazetta. - http://www.artnet.com/alexander.html
Artguy - Dealer Hugo Brach selling mostly modern original comic book art. - http://www.artguy.net/
The Artist's Choice - Spencer Beck, artist representative, specializes mostly in modern comic art, and representative for artists including Jim Aparo, Nick Cardy, Colleen Doran, Ramona Fradon, John Romita Jr. and the estate of Curt Swan. - http://www.theartistschoice.com/
Anthony's Collectibles - Anthony Snyder deals mainly in Silver Age through Modern comic book art and comic strips. - http://www.anthonysnyder.com/art/index.html
Artworkworld - Mainly modern comic book art, with a smaller selection of strip art. - http://www.artworkworld.com/
Art Originals - Moderately priced comic strip and comic book art. - http://www.artoriginals.ca/
Art of Comics - Original comic book art by Bryan Hitch and Paul Neary. - http://www.theartofcomics.com/