GooSeeker

One of the differentiated feature of MetaSeeker is its capability to extract data precisely so that the noise information is inhibited from the results. The result files are like tables in a relational database where each field of the table holds just contents in exact semantics. The further manipulation against the results becomes very straight-forward with the help of data schema. At the same time, the manipulation doesn't need person's involvement to handle special case.

There is not an authority to define what are screen scrapper and web scrapper respectively. The following description is based on my understanding on their difference. I think a screen scrapper is integrated with a Web browser engine and a web scrapper is not. So MetaSeeker is in type of the former.