31 Different APIs Used in 7 Days: YouTube, Twitter, Google, Yahoo, Amazon, Facebook, MySpace, LinkedIn

This past week 16 new mashups were add to our mashup directory and 32 different APIs were used to build them. Some of the newer or less frequently seen APIs include Cloudspeakers, Friendster, Hyves, and Printfection. The most often used APIs this week are Amazon eCommerce, Google Maps, and Twitter. And the most frequently used types of APIs were Shopping (7 APIs, 8 mashups), Social (7 APIs, 9 mashups), and Search (4 APIs, 4 mashups). The list below shows which APIs were used by which mashups.