Most people don't notice that Google has a little text link below the logo called "Products." Here is the link http://www.google.com/products
Clicking it leads you to Google's product search engine, where you can sort products by price low to high, high to low, seller rating and even narrow down products by price range and brand. Because merchants can submit their products for free, there are more products than in the pay-per-click shopping engines like Bizrate that can have biased results based on who's paying the most per click.
