In my opinion, I think Yelp can't really implement some of the algorithm changes because it would radically affect all of the ratings across the board. Also fo

In my opinion, I think Yelp can't really implement some of the algorithm changes because it would radically affect all of the ratings across the board. Also for changing the review structure (one text box), that probably most likely wouldn't change. I think the tweaks would differentiate the service from Yelp, but you do have a super valid point about the cost of user base acquisition. As for monetizing the site, I'm hoping (again laying out a business assumption that may be faulty), that businesses would want to subscribe to a service for a low cost say like $5/month to get customer feedback to help improve their bottom line. It does kind of assume businesses would listen to the customer though.