This is the list of some of the websites that offer tools and material that are very helpful for education and research in Islam. The objective is to provide a variety of resources on Islam and understandings of Islam. Obviously the author of this website does not necessarily agree with the views expressed in all these websites.
tanzil.net(easy search and browsing for the Qur'an)
erquran.org (a source to see the variant readings of the Qur'an)