Web Data Extraction is the process of pulling data from designated sites. Web data extraction can be carried out by manual effort or an automated system. The option is up to you for which you need to go with. The software used in web data extraction can automatically log into sites, recognize emails, links, even recognize snail mail addresses from a free formatted text. It takes unstructured data from the web HTML pages and converts it to into structured records which are easy to access. In o.........