This week's book giveaway is in the OO, Patterns, UML and Refactoring forum. We're giving away four copies of Refactoring for Software Design Smells: Managing Technical Debt and have Girish Suryanarayana, Ganesh Samarthyam & Tushar Sharma on-line! See this thread for details.
...and then there are:
JBoss RESTeasy: http://www.jboss.org/resteasy RESTlet: http://www.restlet.org/ I am sure there are others too...
I would recommend using a framework that supports the JAX-RS standard, with the associated annotations which makes developing a RESTful web service quite easy.
"Debugging is twice as hard as writing the code in the first place. Therefore, if you write the code as cleverly as possible, you are, by definition, not smart enough to debug it." — Brian W. Kernighan.