Methodology

Tools used to collect the information about the topic:

We have used for our search mix of three tools “Manual, Automatic, and Cartography” but we have limited our search for the best 8 search engines as the following.

A. Two Manual Tools

      1) Exalead Website: www.exalead.com/

      2)  Qwant: https://www.qwant.com

B. Three Automatic Tools

      1) Google alerts,

      2)  Alerti,

      3)  Mention

C.Two Cartography Tools

     1) Touchgraph,
     2)  Yippy