Exam Master is an online test prep resource that includes test preparations for Step 1, Step 2 CK, and Step 3. It consists of practice question and organ systems covered by the USMLE.
STAT!Ref is a full-text healthcare library the enables uers to cross-search evidence-based references. It provides best-evidence summaries and answers to clinical questions concerning symptoms, disease, and treatments.
BoardVitals for nurses is available once you create an account.