Warning: Undefined array key "visitor_referer_type" in /var/www/vhosts/wordinf.com/core/app/libraries/Core.php on line 98 Marc Ostrofsky - Traditional horizontal search engines...
Traditional horizontal search engines cannot always identify the target audience, niche or vertical industry of a page or site. Vertical search engines address this issue by the nature of their design. They identify sites according to more specific criteria and sometimes even by human input.