Google's database for aspiring and professional app developers alike, this site contains loads of useful tools that google has made available for anyone to use in their API. They even give you API coding tutorials and provide you with the source code to include Google API's in your API!
Easy to use databse and API creator that allows users to create their own API and online databases using a drag-and-drop user interface, customizable commands, and insertable code all with the click of a button and little to no coding experience required.