TechCrunch
In the next several weeks, social buying site Groupon will announce revenue sharing partnerships with eBay, Yahoo, and CitySearch, sources tell
TechCrunch. Still, despite being "one heck of a startup," TechCrunch's Michael Arrington argues that Groupon and its backers are in for one heck of a reality check. Regarding the issue of scale, the social buying site "needs a lot of sales people for each market it handles and already probably has more than 2,000 of them on payroll," notes Arrington. "But the real problem is the complete lack of a network effect to protect its business." …