On the atheist side, there's Friendly Atheist, who posts too much but hey, it's Hemant, he's cool, and how else would I know about the latest atheist billboard? or, every time he posts something about vegetarianism, I would miss reading the virulent viewpoints of meat-eaters (carnivores are as ADAMANT about meat as atheists are about NO GOD).
There's Pharyngula, who thrives on being a total jerk, but occasionally posts a nice photo of a cephalopod and encourages us to Pharyngulate stupid online polls (which is fun to do). Without Pharyngula, I would never have (briefly) subscribed to Ken Ham's blog, so I wouldn't know that Ken Ham is crazy.
On the Christian side, there's a blog by one of my former ministers, a man who is nice enough, but gees, he created 3 children, and two are ministers (girls can't be ministers in the denomination I was raised in, so his daughter married a minister). I read his little mini-sermons on sex in marriage and the importance of family and how he scrubbed the floors before company because his wife was ill, and I know where's he coming from because I was raised in that church, and I always wonder why some people believe that silly book and others leave.
Christian bloggers don't offer me anything. I've been there, done that, and left decades ago. I may be mildly interested in re-reading the Bible, but there isn't much point in finding out Christian opinions about it. The world isn't about an epic struggle between good and evil; the world is about shades of gray. Life isn't about meaning; it just is. We will NEVER agree, we will always be at war, and our illusion of meaning will disappear.