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While most parameter handling examples with JAX-RS focus on
@PathParam, there are other JAX-RS 1.x annotations that are worth knowing.
Mkyong has a short and simple example for how to use @MatrixParam (and for many more here) while John Yeary covers @CookieParam. The JavaDoc for both annotations can be found here and here.
Meanwhile, François explores Jersey's support for MVC where the Controller is a resource class, the model is returned by a resource method, and the view is a template which operates on the model (this is inspired by the stapler project and is also used by Hudson). Note that this is not part of the JAX-RS standard.
To close this quick roundup, I'd like to point you to a month-old JAX-RS blog entry by Adobe's Christophe Coenraets combining jQuery and JAX-RS/Jersey as probably the one with the best taste to date (IMO, etc...) !
Update: John Yeary has (a lot) more JAX-RS resources for you.