Which one is YOUR BEST EARNING site?

Hello Friends, We all like to advertise the sites that we join, many times even before we start earning from them. I would like to ask you all, out of all the sites that you have joined and advertised which is your best earning site? When did you join that site and approximately how much you have invested and how much you have earned. For me the best one is Survey Saavy, I get surveys off and on but each survey is any where from $2 to $50 and some times even $150. Been with them for many years now. Here's my link if any one is interested: