How Many Reviewers Should Be in the Kitchen? - Yelp vs. Zagat
nytimes.com
nytimes.com
e.g. http://maps.google.com/maps?hl=en&um=1&ie=UTF-8&...
Personally I like Yelp better, but I've only really been looking in SF (which is their strongest card).
It's pretty clear to me that Yelp-like sites are the future of (this type of) food review online, especially since Zagat is charging.
Playing off the network effect for a user generated content site seems key, and charging a subscription certainly doesn't help with that. Traffic stats and restaurant coverage mentioned in the article bear this out.
I use Yelp quite a bit... but I don't really trust their rating system since I heard a while back that they pay a lot of their reviewers or "marketing associates". I've often found myself disagreeing with their ratings.
I used Zagats almost exclusively during my corporate days. Reviews seemed pretty trustworthy but the whole annual publishing thing was way too slow.
As a business:
I've heard from classmates of a Zagat family member that the company does pretty well financially. From what I remember, all my consulting/banking friends got a Zagats membership as a company perk, which helped build brand loyalty and probably generated dependable cash flow.
On the other hand, I've heard from media reports that Yelp doesn't generate a lot of cash (they've taken 4 rounds of VC financing). I guess they're waiting for the big exit for their great traffic growth.
As an aside, I've found that Yelp rarely helps me decide on a restaurant. Sometimes Yelp says a place is bad, and I love it. Sometimes it says it's great, and I hate it. Sometimes we agree, but basically I can't trust it. People that aren't professional reviewers don't really know how to review a place ("1 star because I don't like cheese, but ordered a cheese pizza." People on Amazon do this too -- "I didn't like jrockway's book because it didn't cover something I wanted it to." That is a wish, not a review.)
I like the Tokyo Metropolitan Government Building ("tocho") in Tokyo (obviously). You walk into the lobby and press the "up" button on the elevator. Then you press the button for 90-whatever, wait a while, and get off at the top. Then you enjoy the view. (And it's free, of course.)
If someone bought your book because something about it gave the impression that it would contain certain information and it didn't, then I think that's a legit reason to not like it. However, I agree, the simple review you've pointed out isn't adequate. It would be nice to know why the person thought the book would cover what they thought was missing.