I'm really excited to announce that, after almost two years of work (in may spare time), I've finished and published my free guide to Wicket!
Wicket never provided a freely available documentation and the lack of an organized and freely available documentation has always been a sore point for this framework. This guide is an attempt to fill this void providing a free guide to the framework that should significantly reduce its learning curve. The guide is aimed at both beginners and more advanced users of this framework.
Hope you will find it helpful!
You can find it at https://code.google.com/p/wicket-guide/.
PS: Any feedback of any kind is REALLY appreciated!