I use the font myself on a regular basis. But if you do get a font that you can't identify you can upload an image to http://new.myfonts.com/WhatTheFont/ and it will identify the font for you, or at least give you a selection of fonts that it could be.
I use this all the time. There is even awhatthefont iphone app so you can take a photo of a font and it uploads it and identifies it on your phone.