What is yelp and how does it work?

Related questions

1. What is the purpose of Foursquare?
2. Is Foursquare free?
3. Does Foursquare still exist?
4. What percent of Yelp reviews are fake?
5. Can businesses hide yelp reviews?
6. Why did yelp not recommend my review?
7. Why would a yelp review be removed?
8. Are Google reviews better than yelp?
9. What is yelp used for?
10. Does yelp make money?

Tags

1. #android
2. #popular
3. #founded
4. #users
5. #search
6. #discovering
7. #smart
8. #devices
9. #businesses
10. #cafes
11. #directory
12. #ranging
13. #hairdressers
14. #online
15. #stations
16. #website
17. #restaurants
18. #local
19. #official