Islam :
Good Islamic website dealing with Islamic faith ....
http://www.peopleofsunnah.com/
Casual Islam and issues regarding Islamic people world wide :
A very healthy website dealing with Islam , culture , news from Muslim world , world news , Shari'a law , Fiqh question/Answers from Islamic scholars , Entertainment , Health and Science etc etc ... Great Website to spend some time on ...
http://www.onislam.net
Islamic apologetics :
---> Apologetics mean "defence" ... Giving arguments to prove Islam right and prove critics of Islam , and other religions , wrong is called "Islamic apologetics"
For answers to the allegations against Islam/Qur'an/Prophet Muhammad (saw) etc ... A very good , detailed site...
www.Answering-Christianity.com
Another great but simple site for the defence of Islam ..
www.letmeturnthetables.com
A
scholarly website dealing with in-depth issues of Apologetics ... ( Highly recommended for people who have experience in apologetics. Can be a little hard for beginners ) ..
http://www.islamic-awareness.org/
Jazak'Allah ...