Business sales are generally classified as either stock sales or asset sales. Mobile app or website sales are generally classified as asset sales. The important advantage of selling assets to buyers is that they only buy what they want, without the commitments that may be associated with the sale (with the exception of liabilities directly related to the purchase of the assets). Flippa and other similar sites focus on selling assets. A website sales contract covers the transaction when one party buys one site from another. There are many internet-based businesses, including mobile apps, web apps, and websites that are very profitable. In most cases, due to the inexperience of the original developers or founders, these companies will never reach their potential. .