Geo Domains  are strategic domain names that use geographic regions in the domain name. People generally search by city names (depending on what they are searching for), or by state names. An example of a Geo Domain would be www.DallasPoolTable.com. This is something that people in the city of Dallas would generally search if they were looking for a pool table. Geo Domains have an intrinsic value because people will search for that cities name on many occasions. Search engines have to include those names because the person searching may be searching for a company by that name, and they want you to find exactly what you are looking for. There are many aspects of Search Engine Optimization that can improve a sites rankings, but this is the most important.