Outdoorsy - Find the best RV rental
iLend - Keep track of the things you lend and borrow.
LendList - Never again forget what you borrowed from someone and keep track of what your friends borrowed from you (Android app). - raphaelm/lendlist
Masterworks - Invest in the world’s most valuable paintings.
Who Has My Stuff - undefined
8x10 - Sell signed, limited edition fine art with a single post