Wildcrafting.Net seems fairly useful, though their older page had pizza adds plastered all over it, which made me hungry.
Girl Meets Bug is all about edible bugs and is pretty cool, actually. Not for the weak of stomach.
Here is a neat thing about the stick/box trap for rabbits. Not just for cartoons!
Here is one about skinning and cooking rabbits. And in fact, this site is really informative about all kinds of food in the wild!
Here is a wikihow about catching squirrels.
And one about skinning and cooking squirrels.
Just be sure to do your homework. Do some research on animals in your area, and how to make simple snares for them.