Relevance is a search engine's holy grail. People want results that are closely connected to their queries.
Marc OstrofskyOver many generations, fortunes in the business world were made through buying and selling products in physical stores. Internet fortunes have been made buying and selling products online.
Marc OstrofskyWhenever one or more components of a company's business model changes, new business models are created for supporting companies. The changes might involve niches served, new marketing angles or improved value propositions.
Marc OstrofskyTraditional 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