Using Grizzly 2.x as a simple HTTP server
By alexismp on Jul 24, 2011
He discusses how familiar the APIs should look to anyone that has used Servlets and how simple it can be to create an HTTP engine and start serving static or dynamic requests with Grizzly. If you try for yourself, you'll also see how snappy Grizzly can be.
Grizzly 2.0 was released in Feb (2011) with 2.1.1 being the latest available stable version. Check out this "Getting Started" page. This 2.x branch will be integrated into the next major release of GlassFish.