I have actually seen this site before in my Bio psych class and thought it was really interesting at the time and still do. To me it relates to Psych and Law in the matter that it gives you a brief example of what is happening inside a person's head when they are on drugs and how they aren't acting like they would if they weren't.
http://www.stumbleupon.com/su/1PMK3Z/learn.genetics.utah.edu/units/addiction/drugs/mouse.cfm
I think this is a very interesting website. It is very visual in what can happen and what is going on. I would say that this is a website for high school aged people because the wording was too complex for younger and it was a little simple in for older. Still, it is a very good learning tool.
http://www.brainsource.com/brain_on_drugs.htm
Here is a link with similar information only in a different context. This is not a visual learning tool, but there is still information of the different affects different drugs have on the brain. This would be affective learning for those who need to read information for it to process.