It’s not as if we haven’t had enough time to make a decision about Groupon as we have watched it go from overnight sensation to hyped-up sensation to over-hyped sensation to IPO to a dramatic stock tumble to yesterday’s awful performance reports. No one is likely to be surprised by this fall from grace.

What has to surprise many is that CEO Andrew Mason has survived every last bit of this. He has been held up as a golden child on the way up to an immature kid during the fall. However, like a cockroach surviving a nuclear blast he seems to crawl from every bit rubble that Groupon leaves in its wake.

Last month, consumer review site Yelp hit a milestone – for the first time ever, they had over 100 million unique visitors in a single month. That number doesn’t include the 9.4 million unique users who accessed the site through Yelp’s mobile app.

Speaking at the Morgan Stanley Technology, Media & Telecom Conference, CFO Robert Krolik said,

46% of all Yelp searches originated from our app, and that’s of course, a direct consumer relationship. Somebody has already got the Yelp app on their phone, they’re hitting it and kind of going into Yelp and performing a search there. . . So while we’re still happy to have traffic coming from Google or whatever search engine, we’re seeing mobile as being a little bit of a game changer.