"Of Dust and Kings": http://tehanna.com
Now, most slashdotters are atheists, and I'm not going to debate about that one way or the other. I honestly have no concern what you believe, because I think there's a kernel of truth in all religions and non-religions (including humanism, satanism (whcih is another form of humanism), etc.). However, even if you are an atheist, you still have a sense of morality, and it is possible to get some inspiration from Christian tradition, as long as you don't get enmired in some kind of legalism. Although I think most Christian tradition is a bunch of hooey, I really like the *core principle* of Christianity, which is a religion of forgiveness. To everyone, we can apply this idea of "forgive those who realize they've wronged other people and wish to change their ways for the better." (There are other things about Christianity that I like, and even Dawkins will admit that Christianity is relatively benign.)
The author of this blog (T. E. Hanna) is a Christian (a Methodist minister, actually), but he's also a post-modernist, meaning that he rejects traditions that are out-dated, don't make sense, go counter to evidence, etc., and his perspective on God isn't some man in the sky with a white beard who hands down nonsensical rules. For instance, he's not a creationist, he's not a homophobe, and he believes in total equality of the sexes (mutual submission of partners rather than submission of the wife to the husband in some stupid way).
I've had personal conversations with this guy. I can't tell you just how annoying it is to try to have a discussion with so many Christians who have a narrow interpretion of their scriptures and want to force those beliefs on others. By contrast, all of my discussions with Thomas Hanna have been enjoyable and enlightening. He's all about philosophy, insight, intellectual discourse, and having an open mind. Any aspect of Christianity you learn from him is going to come from him being insightful and settng a good example.
So, even if you don't care much for Christianity, or many of the issues don't seem relevant to you, his blog is still a really interesting read. Here's what I would call an "expert on Christianity and other important moral concerns," and I have read his blog.