When Prosper.com went in the quiet period the company announced on its blog:
If youâ€™re a borrower seeking a loan, you will still be able to create a new loan listing, which we will endeavor to fulfill through alternative sources.
The way this works is that Prosper refers loan applicants to other lending companies. After answering a few questions, borrowers seeking a loan a channeled to Firstagain, Lendingtree, Freedomfinancialnetwork or Creditkarma (and potentially others – the mentioned ones are the ones I was shown).
Should a borrower use the services of one of the linked companies then Prosper is paid a referral fee.
However apparently not all visitors of the site seem to be redirected. Potentially members or former users with cookies are not shown these options.