I am finding a huge treasury on the website, "The Straight Gate", as far as apologetics for Calvinism. Especially informative is Dr. White's assessment of Dr. Norman L. Geisler's book "Chosen but Free". Within all these discussions you will find the 5 points of Calvinism expounded. I recommend this site especially to Calvinists who are honestly trying to understand thier position in relation to Arminianism. Expositions on Romans 9 and John 6 are intelligently discussed here, as well as all other Calvinistic views. There are also many hours of discussion concerning Roman Catholicism, Mormonism, J. Witnesses, etc.