TERC: Testing and Education Resource Center contains a variety of practice exams and study guides in eBook form, notably for the SAT, SAT 2 and AP.
Create an account with TERC (user name and password is of your choosing) to enable scoring and saving of practice exams.
Off the grounds? Do first log in to http://vpn.sps.edu and log in with your SPS credentials to access this (and all) library digital collections.
TERC Homepage. TERC. Gale Group. Web. 5 June 2014.