Looking for a list of free data api's and web services

Posted by darren on Stack Overflow See other posts from Stack Overflow or by darren
Published on 2010-05-31T05:25:00Z Indexed on 2010/05/31 5:32 UTC
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api

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data

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web-service

I'm wondering if anybody has come across a comprehensive list of free sources for data (as a web api) or web services. I'm looking to start a new project to tinker with in my spare time and I am wondering what interesting data is available to play with. It seems like many api services such as last.fm or google search don't exist or are no longer free. Possible examples of what I am looking for

information about a given ip address
mapping api's
information about books, movies, music
information about places, businesses, attractions
meteorological, financial or other scientific data
shopping, products

I would appreciate any suggestions you may have about interesting data freely available through the web. thanks

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