When blogging with a view to attracting a large readership, the important thing to remember is that there is nothing more important than content.
Since we are talking about blogs that deal with Christianity and promoting the great religion around the world, the content should be focussed on the central aspects of Christianity.
That being said, it doesn't mean that every post on the blog has to revolve around the teachings of the religion.
Instead, the topics, while they can be vague, must relate to Christianity in some way.
In order to become a better Christian blogger, it is imperative that you believe in Christianity with utmost devotion.
While you may not be a priest or a reverend, it is a known fact that only when you truly believe in something, or at least to an extent that lets you do proper justice to your content, can you bring out the best.
Bloggers aiming to become actual Christian bloggers can actually quote the bible in the posts.
This way, the topic will not stray too far from the crux of the blog.
If the aim is to increase readership to beyond just devout Christians, the topic and the contents should be more diversified.
All bloggers know that readers decide whether or not to read the post by first reading the title.
If the title is catchy, especially with a play of words, the number of readers for the post is bound to increase.
On a personal level, to become a better Christian blogger, a thorough knowledge of the religion and the dogmas is essential.
We just said that one needs to believe in the tenets of the religion, but a solid blog must have content that is factually right and this comes only with personal knowledge of the theme and the topic.
To better understand your target audience, you can even read relevant discussions on social networks which will give you a good idea about issues which are currently the topics of debate in the Christian community.
Alternately, you can even follow other Christian blogs to get an idea of important issues to talk about.