What Are the Most Profitable Practical Applications of Artificial Intelligence?

[avant-garde]

Hi, I'm Ben.

I was wondering if there are any practical, profitable areas where studying Artificial Intelligence would be appropriate. From what I've heard, AI is mainly grounded in theoretical computer science, which is the most interesting aspect of it. But in regards to what is in demand right now, what are some branches of AI that have practicality?

Thank you!

 

[avant-garde]

bump bump!

 

[MATLABdude]

Google? Amazon's "You might also like..." and other forms of data mining? Computer games?