About Islam
This article describes the fundamentals of Islam, from the meaning and message of Islam to other muslim beliefs.
This article describes the five pillars of Islam, Shahadah (profession of faith), Salah (prayer), Zakah (donating a set amount of money each year to help the poor), Sawm (fasting during Ramadan) and Hajj (going on pilgrimage to Makkah once in a lifetime if able to do so).
This article is all about the holy book of Muslims, the Quran.
Hadith are the sayings of the Prophet Muhammad 
. This article describes how the hadith have been collected and gives information on some collections of hadith.
Sunnah are the religious acts which the Prophet Muhammad performed and taught his Sahaba (companions).