Well, I found this interesting. Dr. Brian Hare, a biological anthropologist from Duke University has started a company called "Dognition". Dognition is essentially a series of games/tests that you go through with your dog to help determine its intelligence/learning style in 5 key fields: empathy, memory, cunning, reasoning and communication.
Check out the promotional video below.
I'm certainly not advocacting for this test (which runs about $60). But it is interesting. Any of you dog trainers out there care to comment? Brilliant? Scam? Somewhere in between? Would love to know your thoughts.