almostserious.com
Original comic art on Sketch Maven. Buy and sell comic art, color guides and sketches on Sketch Maven, the World’s Greatest Comic Art Marketplace.
earlyamericanimages.com
The Early American Digital Library offers exciting portraits, historic events and battle scenes of 18th century America. These rare and historic images are from the Keigwin and Mathews Collection of historical documents.
sketchplanet.com
Sketchplanet is an online user-driven sketching community.