Street Fight Daily: 02.20.12

A roundup of today’s big stories in hyperlocal media, technology, advertising and startups...

Groupon Buys Hyperpublic, a Local Data Start-Up (New York Times)…

What Yelp’s IPO Means About the Future of Crowdsourced Media (GigaOm)…

Why LivingSocial Lost $558 Million Last Year (Business Insider)…