Shopping Comparison Engines Will Boost Sales

Each shopping portal has different allowances when it comes to how much information you can include, so read the fine print.

Now that you know the secrets to landing a top shopping portal ranking, let's take a look at some of the biggest and best shopping sites -- and what you can do to land in their top three.

Free to list:

Google Base -- Optimize your data feed and Web site product pages.

TheFind.com -- Optimize your data feed and your own Web pages, paying particular attention to your product pages.

Free, but you can pay for better placement or sponsored listings:

Live Product Search -- Optimize your data feed and Web pages, compete on price, boost your user rating.

PriceRunner.com -- Pay for better placement, compete on price.

Nextag -- Pay for better placement.

Cost-per click:

MyTriggers.com --Optimize your data feed and Web pages, compete on price (best if you're selling collectibles or hard-to-find items).

Shopping.com -- Pay more per click, compete on price, boost your "trusted store" rating.

Yahoo! Shopping -- Pay for better placement, compete on price.

Amazon Shopping -- Optimize your data feed, pay for better placement.

Pronto -- Optimize your data feed, boost your store rating, write product reviews of related products.

Ask Shopping -- Pay more per click, boost your rating.

PriceGrabber -- Pay for a higher listing, optimize your data feed.

Shopzilla -- Pay for better placement, optimize your data feed.

Shopping sites are online malls. They attract people who are primed and ready to buy. So they're where you want to be, too.