Watson and BlueMix

Natural Language QA system with Watson and Blue Mix
http://www.ibm.com/developerworks/cloud/library/cl-watson-films-bluemix-app/

Partner applications powered by Watson
https://developer.ibm.com/watson/docs/ibm-watson-ecosystem/use-cases/partner-applications-powered-watson/

5 Steps to a powered by Watson application
https://developer.ibm.com/watson/docs/5-steps-powered-watson-application/

What is the Watson Eco-system ?
https://developer.ibm.com/watson/

Examples with the Q n A REST Service?
https://developer.ibm.com/watson/docs/developing-watson-apis/examples-qapi/