Christianity, Judaism, and Islam
Comparative study of the major religions of the world (Islam, Christianity and Judaism) by the Lahore Ahmadiyya Movement for the Propagation of Islam - Ahmadiyya Anjuman Isha'at-e-Islam Lahore.

Christianity: A Journey from Facts to Fiction
Complete text of the book by Hazrat Mirza Tahir Ahmad, Supreme Head of the Ahmadiyya Movement in Islam.

christinfocus.com-Islam
Some basic differences between Christianity and Islam.

Church doctrines which contradict the holy bible.
Examines various Christian doctrines.

Jamaat.Net
A Comparative Analysis site dedicated to placing books of comparative religion on Islam and Christianity, plus audio, video, and essays in order for the Muslim and Christian to make the Choice.