Nofollow tags on Yelp?

Not aware with these in yelp,
will check in other sites also.

I accept with information: The way it works is you add a place to the site by searching for it in the database, selecting it and then commenting about it. At your option the comments are sent to your Twitter.

yes no follow has no value in eye of google.

yelp is a no follow but it can crawl some of our site in some other way...