Statistics show that the number of websites exceeded 1 billion and will exceed this figure by 2016. Even considering that only 25% are active the number is staggering. In this there are thousands of categories dedicated to virtually all subjects under the Sun. For people who want information the internet is a boon because they can get the latest data and detailed information on the topic of their interest. Anyone who does not know how complex the web is would think that a simple Google search is all they need to get their hands on information. It is only when they actually do it that they realize how frustrating it is to actually get to sites that contain genuine information and not promotional materials.
Out there people have access to not just gigabytes of data but terabytes out of which data that serves their purpose may only be in megabytes but to get to this it requires accessing not one but thousands of websites and extracting data. The task is easy for web data extraction services since keywords and a few other parameters and the software do they use automated web data extraction software. The operator simply inputs filters, defines es the rest. The software will carry out automatic searches based on inputs and will access thousands of sites and voluminous amounts of data. From this huge mountain of data it extracts only the specific bits of information required by the end user. The rest is discarded.
How is this advantageous to the end user?
In the normal course the end user if left to extract web data on his own would not have the time or patience to visit hundreds or thousands of websites. It would take more than a couple of months. Even assuming he did visit websites, he would be up against blocks put up by the administrators that would prevent him from accessing or downloading the data. Third, even if he did manage to obtain information, he would have to refine it-a painstaking and time consuming task. All these headaches are short-circuited by the use of web data extraction software. He sits back, carries on with his usual work and the information he seeks is delivered to him by the web extraction service. The extraction tool they use accesses thousands of sites, even password protected sites and sites with automatic blocks against repeated attempts. Since it is automated it can access one website after another in quick succession and download data in the multi-threaded mode. It will run unattended for hours and days, all the while sifting through terabytes of data and exporting refined data into a predefined format. An end user gets more meaningful data he can work on immediately and be even more productive.
If web data extraction services are popular and accepted it is only because they deliver meaningful data. They can only do this if they have the tools to access the huge number of websites, ferret out the data from the voluminous mass and present it all in a usable format, all of which is easy when they use the extractor tool.