How To Compare Grocery Prices Online?

I'd like to know average % price difference between Sysco products and traditional grocers. I know sysco prices vary depending on order quantity, location and shipping. But a "ballbark" figure would be really nice to have.

I want to compare cable provider prices. We have Qwest phone and internet, and I want to know the different prices of cable prices. We want this because we are worried about getting the Converter box and not getting signal. Do you know any websites that...

Like the prices compared between Albertsons and Publix and Winn Dixie? May be coupons for these grocery stores produce, canned goods cleaning supplies or is a Super Walmart the best?

There are many tools for people to track bank account balances, compare prices for most goods online. There are no easy ways for one to compare prices of groceries between local competing chains.

I like buying things on Amazon prime, but only if they are roughly equal to or less than the cost of something that can be found in a supermarket. Is there some site that I can use to find a reasonable "supermarket price" (not the sale price...

I had my first grocery shopping experience in Tucson and coming from New York, thought groceries might be cheaper. Boy was I wrong. I had a small cart load at Fry's and it came out to $127, a container of Orange Juice was even $6.29. Is Fry's typically...