Other sites you should visit:
I Side With put in your preferences on a wide range of issues (be prepared to think a bit) and they will show how you align with the candidates.
(p.s. they accept donations, but you have to visit their About page to find it - send them a few coins for beer.)

Inside Gov shows candidates "features" and lets you compare them.

The British TV series "Yes, Minister" - seriously, at least watch the first season. You will learn more about government from this show than a year of government class. Of course, their parliamentary system is a bit different than ours, and the series is over 35 years old, but (sadly) the battle remains the same.