AAMC MCAT Prep

https://www.aamc.org/students/applying/mcat/preparing/85158/orderingpracticetests_mcat.html

Princeton Review

http://www.princetonreview.com/medical/mcat-test-preparation.aspx

Kaplan

http://www.kaptest.com/mcat

For advice: Reddit (we recommend this as it's less neurotic than SDN)

https://www.reddit.com/r/Mcat/

Book's to look at