The best way to get started with EventWeb depends on whether you are going to use the original EventWeb channels, or WebSockets. If your web browser is reasonably up-to-date and you have a servlet engine that supports them, we recommend you use WebSockets. (We used Tomcat 7.0.64 for EventWeb 0.7.0-beta)
If you're using an old browser, or you don't have a servlet engine that supports WebSockets, you'll have to use native EventWeb channels.
Ounce you've seen EventWeb run and had a look at the code, the next step should be to use the templates to create some services of your own. The Using Templates document should help with that process.