What is a Search Engine?
All search engines start with a “search box”, which is sometimes the main focus of the site, e.g. google.com, dmoz.org, altavista.com; sometimes the “search box” is just one feature of a portal site, e.g. yahoo.com, msn.com, netscape.com. Just type in your search phrase and click the “search” button, and the search engine will return a listing of search engine result pages (SERPs). To generate SERPs the search engine compared your search phrase with information it has about various web sites and pages in its database and ranks them based on a “relevance” algorithm.
Search Engine Classes
Targeted audience, number of visitors, quality of search and professionalism is what determines a search engine’s class. Each search engine typically target specific audiences based on interest and location. World-class search engines look very professional, include virtually the entire web in their database, and return highly relevant search results quickly.
Most of us are familiar with the major general search engines; google.com, yahoo.com, msn.com. A general search engine includes all types of websites and as such are targeting a general audience. There are also the lesser known 2nd tier general search engines; zeal.com,ask.com,whatyouseek.com. The primary difference is that 2nd tier engines are lesser known and generate significantly less traffic.
There are also several non-general or targeted search engines that limit the types of websites they include in their database. Targeted search engines typically limit by location or by industry / content type or both. Most large metro areas will have local search engines that list local businesses and other sites of interest to people in that area. Some are general and some are industry specific, such as specificallylisting restaurants or art galleries.
Many other targeted search engines list sites from any location but only if they contain specific types of content. Most webmasters are familiar with webmaster tools search engines such as; webmasterworld.com, hotscripts.com, flashkit.com and more. There are niche SEs for practically any industry and interest, for example:
Local Search Engines
Loads and loads of Search Engines