Owners are turning their extra bedroom, partitioned living room or entire homes into income properties, thanks to online marketplaces like Airbnb, which connect them to travellers who prefer cheaper and more personal lodgings than a hotel.
http://business.financialpost.com/2015/01/17/how-airbnb-renters-are-helping-canadians-pay-off-their-mortgage-in-a-grey-market-area/