Each week here at ProgrammableWeb we have dozens of new mashups added to our mashup directory. And each week these applications use dozens of different APIs, often in unexpected ways and in unique combinations. For example, this past week there were 23 new mashups added which in total used 24 different APIs (some APIs were used once, some many times). To give a sense of the breadth, the list below shows you which APIs were used by which mashups:
Amazon Mechanical Turk used in Feedback Army
Etsy used in EtsyHacks: Where Am I?, Maker Spot
FriendFeed used in FF2Disqus, SocialDM
Google App Engine used in Yahoo Mail via RSS
Google Maps used in EduPursuit, Famous London Barristers, New York Canal System Map, Reyooz
Last.fm used in LFMPlayer, Musicians and their Instruments
Microsoft Virtual Earth used in Virtual Earth 3D Flight Simulator
MusicBrainz used in LFMPlayer
OpenSocial used in Twitkut
PayPal used in Feedback Army
SnappyFingers used in FindOut
Spock used in iPhone People Search
Technorati used in Hot Keywords Trends
Twitter used in Huitter, Probably True, Twitkut, Twitter2Mail
WebThumb used in Feedback Army
Wikipedia used in Probably True
Yahoo BOSS used in Hot Keywords Trends, Knoxos
Yahoo Geocoding used in Blue One Realty Florida
Yahoo Mail used in Yahoo Mail via RSS
Yahoo Maps used in Blue One Realty Florida
And each day there is one mashup selected to be Mashup of the Day, here are last week's winners:
Virtual Earth 3D Flight Simulator
You can see all past Mashup of the Day winners here.