Artsy.net is an online platform for art collecting and education, “making the art world accessible to anyone with an Internet connection”. A well-funded startup, it recently made news by hosting the first art auction in which the art objects were algorithms, and makes use of algorithms to structure content on its site in an effort it calls the Art Genome Project.
Of interest to vexillologists, Artsy offers profiles on Jasper Johns, David Datuna, and other flag artists, as well as “genes” like flag, american flag, chinese flag, etc.
Some examples of flag art on Artsy:
Portland Flag Association 