Before I have my N number blocked, is there a way to find out who is following my flights?
Not that I know of.
no but why have you been making so many trips to Mexico?
"“Seeeecret Aaaaagent Maan…” 
Just your wife and your goomah(s).
Thanks for the responses guys. I had hoped that someone from the FlightAware staff would weigh in here and tell us if, upon request, they can provide some type of report (either free or for a fee) as to who is tracking us. I have no problem with the public following my flights, in fact I welcome it. My business competitors are another story.
No, we don’t disclose the identity of our users to third parties.
FlightAware does not require people to register with them to track flights - ANYONE can do it anonymously.
IF (thats a big if) they had some sort of log setup to reference usage with tracking, the best they could do is provide you with an IP address. I doubt that they have such a system in place.
That, and then what Mark just said…