Landmark Supreme Court Cases:
Milestone Cases in Supreme Court History (infoplease.com) 17 Landmark Cases grouped chronologically.
Top Ten Controversial Supreme Court Cases (Time Life) Top ten list, no summaries of cases.
25 Landmark Supreme Court Cases (Constitution Facts.com) Includes brief summaries. Very good.
The Most Important and Significant Supreme Court Cases (quizlet.com) 25 cases, in flashcard format with quizzes. Very good.
You will want to have some familiarity with some of the Landmark Supreme Court cases because this will help you both on the multiple choice and essay sections of the exam. The last link above is very good because the summaries are very short and you can quiz yourself until you have the 25 cases memorized. Good luck!
Practice Exam: