Google Maps API is the most popular tool for building location-based services. Now, the Google Maps Operations team is leveraging their experience to collaborate with Udacity and create a free course that teaches students how to integrate maps and location features into websites.
Perhaps your most important online network of business contacts is now programmable. LinkedIn launched its API (our LinkedIn API profile), which allows developers to access a user's connections and anyone's profile data, in addition to several other features. Though some are saying "finally," it's clearly not too late for LinkedIn, who aims to be the professional networking platform.