jQuery.fixture for prototyping Ajax Development
This is a neat thing if you are developing a RESTful application, but you do not have the REST server at the other end, or you are waiting for someone else to develop it. [Link]
If I had known about this a little while ago, I might not have had to build my own test RESTful server, but then, I would not have had a chance to learn about REST, so I might not have learned some very important things. The server I built was a test server, and it really only returns test data. But this jQuery plugin is a level of ease beyond that, because you only pretend to $.post, etc., and it pretends to send back data.