Topics in Islam

General

• http://islam101.net/
• http://islamicity.com

History

http://www.islamicity.com/education/ihame/default.asp?Destination=/education/ihame/1.asp

Basic sources

Various sacred texts

Quran

http://Quran.com

http://www.islamicity.com/mosque/quran/    

http://www.islamicity.org/quransearch/

http://www.justislam.org/discover-islam/the-quran/29-preservation-and-literary-challenge-of-the-quran

http://www.huffingtonpost.com/entry/fragments-of-ancient-quran-could-be-older-than-muhammad_55e5d58ae4b0c818f61937ce

Hadith

http://ahadith.co.uk/

http://www.searchtruth.com/hadith_books.php

http://www.usc.edu/org/cmje/religious-texts/hadith/

http://sunnah.com/muslim

http://sunnah.com/bukhari

http://www.sacred-texts.com/isl/hadith/index.htm

Tafsir

http://www.altafsir.com/

Fiqh (law)

http://www.fatwa-online.com/

Sira (Prophet's biography)

http://www.al-islam.org/life-muhammad-prophet-sayyid-saeed-akhtar-rizvi (by a Muslim)

http://www.faithfreedom.org/Articles/sira/index.htm (by an anti-Muslim!)

Tasawwuf (mysticism)

http://www.tijaniya.org/

Falsafah (philosophy)

http://www.muslimphilosophy.com/

Ritual practice (Islam)

Hajj

http://www.islamicity.org/7758/hajj-walking-the-walk/