POST & GET are part of the http standard. Check out the fielding dissertation they’re two of I think 9 methods
When you submit a form without an opaque query string you are POSTing. When you grab the variables from a query string you are getting your GET on.
I just got the Agile WDwR beta copy. Interesting stuff. I would check out different API’s like Twitter, Gowalla, etc and see how they expose their data/we seb service.
RESTful in peace,