Using the Google Maps Javascript API we can embed Google Maps in a web page we develop and develop code that interacts with it.
The following three video clips overview the very basics of using this API, starting with obtaining the key, creating a simple map and placing markers on it.
I have just complete do develop the Google Maps new course for learning the basics of this API. You can find it at http://abelski.lifemichael.com. The course is available for free personal and academic usage.