View demos of different parts of WSN Knowledge Base. Be sure to check the different style options (all free) and remember that it's now easier than ever to re-theme.
Generic front-end demo Admin panel demo Guided start mode demo
A few of the free themes (click to launch):
To better explore the wealth of backend configuration options -- which can make the front-end totally different from what you see above -- please install the trial or request free professional installation of the trial.