[rednotebook]

I agree it would be nice to bring renting (in London) etc into the 21st century but you're unlikely to ever incorporate a yelp type ratings system for property as there's no incentive for landlords / agents. They rely too heavily on spin and sales techniques - they don't want you talking to other people and discounting properties before you've seen them. They want to take you on a journey where they lower your expectations so that the one property they show you thats better than the others but slightly out your price range makes you fork out the extra cash. Estate agents and landlords want to control the market - you'll have a hard time democratising it. It really is a sellers market in London.

I'd personally like to see the use of web/tech to integrate the whole experience - so everything from deposits, rent, grievances and so on is centrally managed and moderated. Again though, hard to get traction.