In the fifth week of the Virtual Crowd Expedition laptop was with Daan Weddepohl, founder of Peerby: a platform and app that allows you to borrow stuf from your neighbours in 30 minutes. Peerby is in my opinion one of the most interesting collaborative startups. Why? Because the service is working, but besides that there are hundreds of question on business model, service, opportunities, etc. unanswered.
Check this instructive and interesting interview on video or Podcast: