PriceGoblin

PriceGoblin discreetly tells you who else sells the product you're viewing and at what price. Other features include price news and alerts, product suggestions, and retailer analysis. It works for hundreds of UK retailers, including all the top sites. PriceGoblin doesn't receive any of its data from the Internet retailers directly. Instead it learns for itself how to locate, extract, match and compare products and prices.

What is new in this release:

Version 2.5 is a bug-fixing release.