As the Internet continues enrich and expand itself, the most successful websites and web apps (for business and pleasure) are using external data APIs in the background and foreground to lever up their relevance, usefulness and general functionality. Among the simplest, most powerful data APIs are those used for geolocation (geographic location). Essentially, these APIs make your website or webapp aware of where its visitor/user is coming from. A website or app that operates with this information factored in can provide a quicker, richer, more relevant experience, and that is what the web is all about.