I have heard a lot about REST and RESTful services but never have had the opportunity to work in project that uses that architectural style of working. So sadly I haven’t learned it.
Here is a short and sweet introduction to the subject that explains REST in a good way.
So – as I understand it – it’s just HTTP. The way HTTP is meant to be (URL to each resource, stateless, hyperlinks between resources and usages of the HTTP verbs). I like the simplicity.