LendList - Never again forget what you borrowed from someone and keep track of what your friends borrowed from you (Android app). - raphaelm/lendlist
Artsy - A global platform for discovering and collecting art.
Outdoorsy - Find the best RV rental
ArtMajeur - +1 Million original artworks, Free Shipping Worldwide, Low prices guaranteed, 14 days return: buy all the art you love on Artmajeur!
Who Has My Stuff - undefined
WikiArt - The Encyclopedia of Fine Art