There are many resources available to help you broaden your understanding of hate groups and what can be done about them. Here are just a few of them.
Much of the material found on this website can also be found in the pamphlet titled "Exposing the Lie", developed by the Queen's Human Rights Office and the AMS Social Issues Commission.
In addition, much thanks goes out to the Students' Advocates' Office at the University of California at Berkeley. The concept and design of the website, as well as some of the material, can be attributed to their efforts. Check out their website.