In the world of search engines, there are three basic types: navigational, informational and transactional. Navigational search engines allow users to quickly find the information they’re looking for on a specific website. They also enable users to navigate between sites with ease. Informational search engines are typically used by people trying to solve problems or make decisions. Finally, transactional search engines offer consumers ways of finding products and services in which they have an interest or need immediate purchase decisions.