Everyone knows "a guy" who has the inside track on great deals. Where to save $100 on a home theater. How to get a discount on a custom suit. Where to get a free bowl of soup when you buy a hat like that.

Dealio.com is a site where anyone who has the scoop on a great deal can log on and post it for anyone to take advantage of. Other posters can add to or revise a posted deal, keeping the info as fresh and accurate as possible.

Searchable by tags, the deals are also rated by members, which does a couple of things: keeps people from posting ridiculous garbage and scams, and let's you can see at a glance whether the deal is worth clicking on. (There are still a lot of "deals" that are simply rebate listings, but overall the info is definitely worth looking at.)

It's hard to know on comparison shopping sites whether the top results are actually the best deals, or are listing from merchants who pay them the highest fees, but Dealio displays the lowest price merchants at the top of the list, making it easy to find the best deal. They also include eBay listings (both fixed price/storefront and auctions) for a more complete "snapshot" of current pricing for many products -- new, used or refurbished.

Their "auto-trigger" function lets you know instantly when you are one click away from overpaying for virtually any product sold online. And their Dealistrations show you visually which listed deal is the best, if there are several places to buy.

Addicted to getting the best deal? You can download the Dealio toolbar (because having 16 up there isn't enough already) for instant best price alerts and the hottest deals of the day.

www.dealio.com