You have a hectic business trip to Seattle coming up and its time to choose hotels. Sure, there's cost, availability, checkout times ad whether it has a pool or gym to consider. But there's another important factor: proximity. The Travel Time API demo uses Seattle. See graphic below. You have 4 meetings scheduled over a couple of days: At Amazon's headquarters, a drop in at Starbucks for a chat with a friend, meet at the headquarters of Walkscore, and then lastly at Zillow.
Riders on New York City subways are subject to all sorts of sights. For several months, that has included prominent advertisements for the MTA API, the developer program of New York City's transit company. The ad (pictured below) includes the headline, "Our apps are whiz kid certified."