Stop Islamization of America Network is a superb resource for learning about radical Islam.  As of right now (Nov 1), they have an excellent Lecture series from Dr. Bill Warner, a well-known scholar on Political Islam.

Remember, Islam is not only a religion but also dictates politics, society, military and other areas of living.   That means that Radical Islam's potential to coexist with a secular society that separates Religion and Government is impossible.  In this form of Islam, they are one and the same.

Check out their website for additional resources but here is only a partial excerpt from their Statement of Purpose which is very enlightening, concise and focused.   Please read it all.

We Acknowledge the Value and Importance of Our Culture and Country

• We love democracy and believe that it is worthy of defense. We acknowledge no perfection though we admit to a constant striving for improvement.
• Those political candidates who support our cause of defense of America will get our support, those who do not will not.

We Are Part of a Growing Movement of Awareness and Knowledge of Islam

• We support the efforts of our friends in the United States, Europe and across the world whose desire is the continued existence of their cultures, religions, and cultures. SIOE is the founding organization in this growing global awareness of the threat of Islam. The importance of their work cannot be overstated.

We Are Ideological Warriors in a War of Civilizations

• We are scholar warriors in this ideological war of survival with Islam. Our mission is to learn, educate and empower our political leadership so that our existing laws are enforced and new laws are enacted that will eliminate support to totalitarian ideologies like Political Islam whose purpose is our destruction.