100 in 100 Challenge - Get 100 new paid users in 100 days
Artsy - A global platform for discovering and collecting art.
The First 100 - Proven framework for acquiring your first 100 customers
ArtMajeur - +1 Million original artworks, Free Shipping Worldwide, Low prices guaranteed, 14 days return: buy all the art you love on Artmajeur!
#buildinpublic - Discover what people are building in public
Magnus - Shazam for art