Getting developers hooked on your API
Hypermedia, REST, SOAP... It's not a matter of "why" anymore but rather of "how". Still, once your API is all set up, getting developers to use it is a real challenge. A challenge you should be ready to rise to as your API can eventually be its own channel for product adoption. How to make sure developers know about your API, that they use it efficiently and finally, that they love using it.