There are Many Great Resources Out There to Study for the NCLEX..
But here are links to just a few
Hurst Review: http://www.hurstreview.com/
Kaplan Review: http://www.kaptest.com/NCLEX/Home/index.html
NCLEX Review Secrets: http://www.mo-media.com/nclex/
National Council of State Boards of Nursing- NCLEX: https://www.ncsbn.org/nclex.htm