There are many websites that now have powerful features for consumers in comparing prices. Sites like Bizrate, Nextag, Pricegrabber, and others can valuable information for business owners. Price comparison web data extraction can be used to pull these prices from the websites and put them into data bases or spread sheets for analysis. These extracted prices, when kept over time, provide invaluable data on marketing trends and competition pricing that can give any business the edge it needs in today’s business world. There is no need to invent the wheel when others have already done it for you. Let them do the hard work while sit back and harvest the information they provide.