I NEED YOUR HELP

Some time in the last month I ran onto a grocery store comparison blogish thing. For $5.00 a month they will list all the grocery ads and tell you if that is a cheaper price than Sam's and Costco.

I think I got there from someones blog by clicking a link. I've spent two days looking at my history and checking every blog. I've Googled everything I can think of but it never comes up. WHERE IS IT? If you know, will you leave the URL in the comments section. I want to sign up but...how can I?

Thanks so much.