You need to use the search function and read through more threads. Your question is impossibly broad and vague and makes you look like you are unwilling to do the very minimum amount of work necessary to answer your own question. Questions re: which resources are most useful has been discussed ad nauseum. It's basically the entire point of this particularly forum. Please read more and then ask a specific question.
1) Uworld Qbank, First AID 2013
2) First AID Q & A for Step 1
3) Webpath: The internet Path lab- http://library.med.utah.edu/WebPath
4) High Yield Embryology, High Yield Neuroanatomy, USMLE Road Map: Gross Anatomy
5) High Yield Behavioral Science
6) Rapid Review Biochemistry
7) High Yield Cell and Mol. Bio
8) Medical Microbiology and Immunology Flash cards
9) Pathoma
10) Kaplan Pharm review notes and Deja review Pharm
11) BRS Phsyiology
If you can go through all that you're good to go lol