Student Loan Hero - The smartest way to pay off student loans
Trustroots - Travellers community for sharing, hosting and getting people together.
WeFinance - Crowdfunded student loans
BeWelcome - Open your door to the world!
LendEDU - Student loan debt consolidation & refinancing
Hospitality Club - Free network of people around the world who offer free accommodation, advice and help when they are traveling - hospitality exchange. Free membership.