Remember that content is the key to a successful blog, Quality scores over quantity in getting audience to your blog.
Presentation is as important as good content. Have attractive pictures, fonts, etc. on your blog to hook the reader.
Content is the king - In the blogging world so diverse and big, you need to establish yourself with a distinction. the only road to it is good, original and valuable content. Be creative, different and surprise your readers once in a while.