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?

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

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

A very good Restful API for Sun Cloud platform.

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