PayPal.Me - Request money using your own personalized URL.
PayKickstart - PayKickstart is the ultimate shopping cart and affiliate management platform, empowering online Entrepreneurs and digital publishers with the tools to sell their products online.
Solo - Personal kanban boards hosted on your own server
Shopio - Shopio is an all-in-one hosted shopping cart solution.
Zipsell - A free, open source platform for selling digital downloads
Selz - Seriously Simple Selling