By THE STAR STAFF Airbnb announced this week that it will begin donating a portion of revenue from every stay booked on its platform to Airbnb.org, a nonprofit organization that provides free temporary housing to people affected by disasters, medical emergencies, domestic violence and other crises. The company said the new funding model is expected to contribute $500 million over the next five years to Airbnb.org, helping the organization provide nearly 1 million free nights of accommodation…
