And to be honest, we don't really find a way to implement this idea. As it would depend on visitors anyway (i don't know any effect), please have a think about how you and others would like to see this done.
I was thinking about:
- a list of effects
- when you click on an effect, you get to a page with: a description of the effect (provided by visitors), a couple of pictures from demos (maximum 5 for example), ability to add comments to each effect (to discuss)