REST URI和对象的操作，可以对其进行评论，标记，评级等

I'm doing research into a web API for my company, and it's starting to look like we might implement a RESTful one. I've read a couple of books about this now (O'Reilly's "RESTful web services" seeming the most useful) and have come up with the following set of URIs and operations for an object that can be commented on, tagged, and rated. I'm doing research into a web API for my compan