Yelp (NYSE:YELP), that other well-known consumer Internet company set to go public, has filed a new S-1. According to the filing, the company posted 2011 revenue of $83.3M (+74% Y/Y) and a net loss of $16.2M. Monthly unique visitors stood at 66M at year's end (+67% Y/Y), while total reviews on Yelp's site reached 25M (+64% Y/Y). Yelp's mobile apps were installed on 5.7M devices.