Listia

Listia is a trading marketplace that helps anyone turn their unwanted clutter into things they want and need, all for free. Founded in 2009, Listia is headquartered in the heart of Mountain View, CA and is backed by General Catalyst, a16z seed, SV Angel and Y Combinator. 

Listia's mobile apps are available for both iPhone and Android devices. For more information, visit www.listia.com.