Transferslot - Easily buy and sell side-projects
Flippa - Flippa is a platform for trading websites.
MicroAcquire - A free & anonymous startup acquisition marketplace
Negotiante - Sell Website for Free
BitsForDigits - An acquisition marketplace for profitable internet businesses. We make it anonymous & free for owners of $100K+ revenue startups to attract full & partial acquisition offers. Free for acquirers to join for a limited time. No commissions, ever.
AcquireBase - A marketplace for buying and selling side projects & SaaS apps for free. Absolutely 0% commission on successful sales. No paywall for unlocking offers.