I own a small bar in Syracuse,NY and have come across a company called US Beverage Net. They monitor your draft beer being poured (with flow meters) and receive data from youe POS system and deliver that information on a login section of their website in real time. This gives you a real time reconcilliation of what's being poured and what's being rung up at any time in the day.It's pretty amazing. I think their website is
www.usbeveragenet.com.