I found a frog in my backyard and I was wondering how to find out what sort of breed it was

I found a frog in my back yard I was wondering if anybody knows how to find out what sort of breed it is and how to upload photos on here so that I can show you the frog.

Here's a site with a list of different species of frogs:
http://allaboutfrogs.org/info/species/
I'd just look through that list - it has pictures!