Education- Netfrog

http://frog.edschool.virginia.edu/Frog1/

I do not think that the website above is very good and it certainly doesnt make the dissection of a frog interesting.
However, it is a good idea to be able to look at how to dissect a frog before doing so, in order to make sure you are doing it and therefore able to see all the necessary things in the frog.
Also, if things like dissecting a frog make people ill there are able to look at what you see when dissecting frog instead of actually doing so, also you then dont have to kill frog.
However, the pictures on the website arent exactly great and as beneficial as you would like them to be but would help you in some way.