Sources that I have found useful in preparing material for my blog. I hope it will assist others to access information. It is a good practice to consult more than one reliable source.The sources are;
Oxford encyclopedia of Islamic world. at,
http://www.oxfordreference.com/view/10.1093/acref/9780195305135.001.0001/acref-9780195305135.. It is an excellent but it costs $199 a year.
University of Georgia. www.uga.edu/islam by Dr Alan Godlas. It is a comprehensive site on Islam and Sufism. All material on Islam is in one place and it us free.
Princeton University. https://www.princeton.edu/~humcomp/scholars.html. It has all Muslim scholars of the Golden age of Islam in one place.
Fordham University. internet Islamic history source book at;
Stanford encyclopedia of philosophy at;
www.plato.stanford.edu/entries/omar-khayyam. Ibn Sina, Ibn Arabi , Al Kindi and others are there.
M.I T. classics.mit.edu/Sadi/gulistan.html. Shaikh Sadi and some others are there.
Articles – On Spain. Science the Islamic Legacy in April/May issue of Aramco world 1982 a good read at;
BBC documentaries. Islam, Crusade, Spain etc.
For Islam and Sufism: Books, publications, articles, videos of Sayyed Hosein Nasr, Anne Marie Scheme, Martin Ling, R A Nicholson and Timothy Winters of Cambridge, Omid Safi d of Duke University, William Chitick on Ibn Arabi and Dr. Afzal Iqbal on Rumi. There are many mire sources which are not on this list. Khaliq