For those of you who are studying for the series 65 exam, you should check out Quizlet, which has lots of information for exams. They probably have thousands of questions from various prep providers. The only downside to the questions, is sometimes the answers are visible while you are looking at the questions, which makes the questions less valuable. With that said, some people post questions in a flash card form and in these situations, you can answer the question without seeing the answer initially. This enables you to work through the question.
I am confident that the quality of exam prep content on Quizlet is very high. If you are going to take the time to load your content onto Quizlet, you are very serious about studying.