The Fatawa's of Shaikh-ul-Islam Ibn Taymiyyah (Rahimahullah). Though he preferred the Hanbali school of jurisprudence, he was never biased in favor of it, he frequently quotes the opinions of all four of the well-known schools of jurisprudence, even others. In a number of matters, he himself held opinions different from those of the four schools.
Author: Sheikh-ul-Islam ibn Taymiyyah
The best explanatory translation of the Qur'aan by Muhammad Muhsin Khan and Taqi-ud-Deen Hilaali, with verse by verse recitation embedded into the file
Translators: Muhammad Muhsin Khan - Taqi-ud-Deen Hilaali
Publisher: http://www.qurancomplex.org - King Fahd Complex For Printing The Holy Quran Website
Source: http://www.islamhouse.com/p/1241
A detailed description of the different ways the Prophet (s) advised people.
Author: Muhammad Salih Al-Munajjid
Publisher: Islamic Propagation Office in Rabwah
Source: http://www.islamhouse.com/p/1359
The author refers to the Quranic verses and Ahadith by interpreting them in a very simple and comprehensible style, and also brings to light the true status of all the unlawful customs and rituals which are commonly practiced in the society and are detrimental to the faith of Tauhid. Tauhid (Oneness of Allah) is the basis of the Islamic religion.
Author: Shah Ismail Shaheed
Publisher: http://www.dar-alsalam.com - Darussalam Publications Website
A nice discussion of some important points needed by those callling to Islam
Source: http://www.islamhouse.com/p/1243
50 Questions And Answers On Islamic Monotheism which talks about Who is your Rub? What is your religion?, Where is Allah?, Who are the friends of Allah? and etc.
Author: Muhammad Bin Abdul Wahhab
Reveiwers: Muhammad AbdulRaoof
Publisher: A Dawah website Wathakker www.wathakker.net