Organic Chemistry Practice Problems at Michigan State University
Cliff Notes - Rxns of Amines, etc
Organic Chemistry Practice Multiple Choice Questions
Lastly, the "ten commandments of organic chemistry" from the Organic Chemistry I Workbook for Dummies by Arthur Winter. I really liked these. They're all true. He expounds on each one a bit more in the book.
Thou shalt work the practice problems before reading the answers
Thou shalt memorize only what thou must
Thou shalt understand thy mechanisms
Thou shalt sleep at night and not in class
Thou shalt read ahead before class
Thou shalt not fall behind
Thou shalt know how thou learnest best
Thou shalt not skip class
Thou shalt ask questions
Thou shalt keep a positive outlook