ContactMonkey – Track, Indentify and Close
https://contactmonkey.com/

ContactMonkey is a smart email tracking tool for GMail using Chrome and Outlook 2007/2010 that helps salespeople identify their best prospects and close more sales. In real-time, Contact Monkey shows if, when, where and how many times an email is opened. ContactMonkey works with Outlook (2007/2010) and Gmail for Chrome. They will be launching versions for more email clients soon! This will be added to Entrepreneurial Resources Subject Tracer™ .