title: What web APIs would you most want to replicate or are the most popular?
body: <p>Soap, REST, xmlrpc.  Facebook, twitter, [insert web 2.0 site].  What is the definitive web API and which would be the one that you would most likely replicate in your own code and for what reason? It seems that some web APIs invoke nausea in developers while other invoke pure worship.  If you were told to develop an API for a website/product which would you emulate (even if it was overkill)?</p>