Though men are apt to flatter and exalt themselves with their great achievements, yet these are, in truth, very often owing not so much to design as chance. – Francois de La Rochefoucauld
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. – Marc Ostrofsky

