Google's Geo-Location API is one of the most used API's on the web. This API(Application Programming Interface) can allow web developers to collect data on web site useage and offer locations services for the users by using google maps embedded into the document. API's allow web sites to access other programs or websites for data without the need to open a new website. This action makes websites easier to use and keeps users on the sites longer. Google's Map API is extremely useful. It can show users your location for walk-in business. It can also show users things nearby. Imagine you are a hotel owner and you would like your website to show nearby restaurants or attractions. Google's API will allow you to do this on your website and would help with potential business. There are endless posibilities for the usefulness of this API. There are thousands upon thousands of API's available for use in web development. When used properly they will definitely make your website more appealing user freindly.