Celent research shows online loan origination has increased over 4 major loan categories:

• Retail mortgage
• Home equity
• Credit card
• Auto

Additionally, the USA today reports:

The market for the loans is still relatively small but growing fast, according to Celent, a research firm. Celent projects that $5.8 billion in peer-to-peer loans will be made in the USA by 2010, an 800% leap from the amount this year.

Peer-to-peer lending is a means by which borrowers and lenders may transact business without the traditional intermediaries, such as banks. It can also be known as Social Lending. The ripple monetary system is a software project based on a similar idea. An enabling technology for peer-to-peer lending has been the internet, where peer-to-peer lending appears in two primary variations: an “online marketplace” model and a “family and friend” model.

The marketplace model of peer-to-peer lending on the internet enables peer lenders to locate peer borrowers and vice-versa. This model connects borrowers with lenders through an auction-like process in which the lender willing to provide the lowest interest rate “wins” the borrower’s loan. The marketplace process may include other intermediaries who package and resell the loans, but the loans are ultimately sold to individuals or pools of individuals.

The “family and friend” model foregoes the auction-like process entirely and concentrates on borrowers and lenders who already know each other, as with two friends or business colleagues formalizing a personal loan. Whereas the primary benefit of the marketplace model is the “match making” aspect, the family and friend model emphasizes online collaboration, loan formalization and servicing.