Where can I learn everything there is too know about the Judicial branch. Website please?? need help for exam!

I am having my final tomorrow on the judicial system and need to know all there it to know about it. Are there any websties that explain it easy and clearly about how it works?? I also need help on the Poltical Parties and interest groups. Its for GOV101. Is there alike a tutoring or help site for this? HELP ME pLEASee! thanks in advance!