Think Tonk Clayton Littlejohn's blog deserves a good look, while he occasionally dips into the Philosophy of Religion, his posts about Epistemology and Ethics are where the best bang for your buck is to be had.
The Prosblogion A professional group blog dedicated to the Philosophy of Religion. Some of the sharpest minds in the field post there, and is required reading in my estimation.
The Mod Squad A Professional group blog that focuses on the history of modern philosophy.
Philosophy of Cosmology A professional group blog dedicated to the Philosophy of Cosmology out of Rutgers.
Leiter Reports Love him or hate him, Leiter’s blog is the best source for news concerning the discipline of Philosophy in the English speaking world.
It's Only A Theory A Professional group blog dedicated to the Philosophy of Science.
Alexander Pruss Alexander Pruss is a Philosopher, Mathematician and all around classy guy working out of Baylor University, one of the best Theistic Philosophers out there in my opinion.
Chris Smith's Carrel Chris is a PhD student of Religions in North America at Claremont Graduate University, and my guru when it comes to anything Mormon related.
Trinities 4 authors discuss biblical doctrines about the nature of God from a Christian perspective. Dale Tuggy is my fave!
Zwinglius Redivivus I disagree with Jim West on about everything he has to say, which is all the more reason to read him.
Runtu's Rincon Runtu is a talent writer and fabulous dinner companion whose blog about Mormonism is the most creative and insightful blogs that I read.
ClobberBlog A blog ran by the infamous Bridget 'Jack' Jeffries, dealing with everything Evangelical and Mormon.