Airbnb is a site I used more than once. And even better than the services they provide is their entrepreneurial story.
They started in 2007-2008, they’ve been through Y Combinator, they got refused by close to 100 investors that didn’t understand their value proposition and they grew a company whose valuation is more than $1 billion.
Looking around, I’ve found 2 videos of their founder, Joe Gebbia: one in 2008, when he was just starting AirBednBreakfast.com (the initial name) and one in 2011, when he was already growing fast.
Got the videos from here. There’s also an interesting story behind the first one there to read.