REST web service available out there to use?

I was just wondering what other cool web service API out there that we can use besides the following: 1. Foursquare 2. Fac开发者_如何学Cebook 3. Twitter 4. Google & Bing Map 5. NetFlix 6. LinkedIn

What other ones can you find?

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ProgrammableWeb has an entire database of web APIs, over 2,000 of them so far, organized and searchable. Dive in!

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oh man. Yahoo has a TON of web services . Google has an API called GData and it's likewise a ton of things.

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A very good Restful API for Sun Cloud platform.

http://kenai.com/projects/suncloudapis/pages/Home