This week's book giveaway is in the OCMJEA forum. We're giving away four copies of OCM Java EE 6 Enterprise Architect Exam Guide and have Paul Allen & Joseph Bambara on-line! See this thread for details.
In SOA you create services and if you want to expose them over web its webservice. So even if you write servlets in SOA fashion you need webservice to communicate over web.
I would be glad to know about your thought.