Is there a good up-to-date list somewhere of all of the major subfields within artificial intelligence?

Is there a good up-to-date list somewhere of all of the major subfields within artificial intelligence?

What are the fields of artificial intelligence and should I know all of them if I want to start?

The Wikipedia Category:Artificial intelligence should give you a good indication of the many sub-fields of AI.  There are not only way too many to re-post here, but also too many for any one person to master, ever….