Read the O'Reilly RESTful Web Services book. It's a great explanation of why REST is good, and has a bunch of design patterns for the major pit falls. You coul

Read the O'Reilly RESTful Web Services book. It's a great explanation of why REST is good, and has a bunch of design patterns for the major pit falls. You could also look at some of the tricks we use at Yahoo. One thing I think is important is the way we handle JSON (http://developer.yahoo.com/common/json.html http://developer.yahoo.com/common/json.html).