I just stumbled upon these WS usage scenarios. I've not seen them before, and have read through only a couple of the discussion messages. (Someone probably pointed me to this list some time ago. I "stumble upon" things this way now and again.)
Apropos to my interests, the latest message in the discussion is "REST, uniformity and semantics". Actually REST shows up about every 10-20 messages. When I am awake tomorrow I'll wonder if the conversation ever goes anywhere, and what else is discussed.