Firstly, how do I get on USAFA's mailing list?

Secondly, is acceptance for the summer seminar very selective?  Does anyone have an acceptance rate for the 2006 summer seminar?

You could contact an ALO (Admissions Liason Officer) through your high school guidance dept., go to www.academyadmissions.com, or call the admissions office.

Yes, summer seminar is selective, but I don't have specific numbers on how many were selected out of a x number candidate pool.  Although it may be selective you'll never know if you will make it unless you apply!  Also, if you are not accepted to it don't think that it is the end of the world.  Some people that are accepted into summer seminar are not accepted by the academy and some that aren't accepted by summer seminar are accepted by the academy.  It is less an indicator of how well you will do in the admissions process and more of a indicator of how well you like the academy and how much you want it.