The Review Filter. 

Yelp.com had an IPO on NYSE last friday. With Saturday’s stock price jumping, the San Francisco company has a market value of US$1.47 billion. So Yelp is almost worth $1.5 billion. Uhmm.. say that again. Yes, it is folks. Dot-com bubble part 2? Remember LinkedIn, Groupon, HomeAway and Zillow. And we have Facebook.com to come. Facebook’s IPO is expected to raise at least US$5 billion. Yelp.com is best known for restaurant reviews. They also have reviews on churches, strip clubs, hospitals, hotels and high schools. The company makes money from advertising. Most of the ads come from the local businesses that its users review.