Secondary search engines are targeted at smaller, more specific audiences, although the search engine’s content itself is still general. They don’t generate as much traffic as the primary search engines, but they’re useful for regional and more narrowly focused searches. Examples of secondary search engines include Lycos, LookSmart, Miva, Ask.com, and Espotting.

Secondary search engines, just like the primary ones, will vary in the way they rank search results. Some will rely more heavily upon keywords, whereas others will rely on reciprocal links. Still others might rely on criteria such as meta tags or some proprietary criteria.

Secondary search engines should be included in any SEO plan. Though these search engines might not generate as much traffic as the primary search engines, they will still generate valuable traffic that should not be overlooked. Many users of secondary search engines are users because they have some loyalty to that specific search engine. For example, many past AOL users who have moved on to broadband Internet service providers still use the AOL search engine whenever possible, because it’s comfortable for them.