Here are some useful links to register and prepare for USMLE Step 1.
USMLE Official Site – information about the exam
National Board of Medical Examiners (NBME) – Go here to register for Step 1 or buy self assessment exams
The majority of students at OSUCOM use First Aid for Step 1, Pathoma, and UWorld question bank as their primary study materials for Step 1. There is also individual and group tutoring through the PEER program, and keep in mind that your fellow classmates and colleagues are always willing to help!