Yelp is the first almost entirely crowdsourced media entity entities to go public. Yelp's entire business is built on the more than 25 million reviews that it has accrued over the years from its users. That user-submitted content is the reason that Yelp attracts more than 66 million unique visitors a month.
Prices and menus now available on the website, soon to be on mobile apps. The idea is that soon Foursquare will index the menu data so it can let users search for very specific things in Explore.
Uses menus from SinglePlatform, which includes a lot of smaller restaurants
smart app! uses "bots" to scour the web, sites like yelp and citysearch, and indexes info to give recos, unlike amazon's model of friends of yours like this so you should like it too
Dish.fm shows users what is the best dish, drink or dessert to order at any given eatery based on the results of millions of reviews pulled from Yelp, Foursquare and other sites. Photos, reviews and overall ratings are available for each dish, and users can share their own opinions as well by voting for the dishes they like.
On the decline of user-generated/participatory media efforts on blogs, Wikipedia, and other sites. The article concludes by pointing to how sites like Yelp, Gawker, and HuffPo (natch) are using reward systems and game mechanics to encourage long-term, substantive participation from their communities.