A brief guide to Islamic sects
This site hopes to inshallah, help further Islamic unity. However, this unity can not come at the price of sacrificing principle of the deen.
URL: http://www.geocities.com/defender_of_the_truth/index.html

Allaahuakbar.Net
There are many sects which claim adherence to Islam. However in reality they are far from the Islam. The purpose of our articles is to present true Islam. These articles are for awareness & educational purposes. It is not meant to offend any one or spread
URL: http://www.allaahuakbar.net/

Deviations in Beliefs
Refutations of Nation of Islam, Habashis, Submitters, Sufis and others.
URL: http://www.islamic-knowledge.com/Deviations.htm

Pseudo-Islamic Cults
Facts and evidences that deserve a pause from you to contemplate through the page and know its goals. We have facts that may be published for the first time, and we have pictures, documents, audios and videos that prove our point.
URL: http://islamicweb.com/beliefs/cults/main.htm

Shias and Other Ideologies - Refutations
Refutation of Shia and Ahmadi sects.
URL: http://www.islamic-knowledge.com/Shias.htm