There are numoerous web data extraction The technique called scraping to help in your search.
Companies like MOZENDA specialize in the development of applications that are also known as internet extraction tools that can help both large and small businesses create a competitive advantage. They have a great example of how their software works by using a small electronics company doing research on a larger retailer where they pull data from their site on HDTV’s that include models, pricing, and specific information. This program is then set to run at specific intervals to search the site and then report back with data that the vendor can use to help create competitive pricing or which models to offer to be more competitive. This is one special application that was showcased and only took about 5 minutes to setup. The best part is that the front end that drives this application is very intuitive and requires no programming or special skills. Their tools can be setup to grab specific website content and then organize it usable formats.