There are many good resources about writing APIs, but I'm also curious what the crowd here would consider great, exemplary REST API's? Looking for things like well-structured URI's, great design of request and response bodies, useful error handling, useful and beautiful documentation - as well as dealing with real-world stuff that can make API's and REST hard (pagination, wanting to do RPC style stuff specifically long-running tasks, etc.). Any good API's you'd recommend looking at for inspiration?
