Develop a ministry blog based upon your own private interests or profession. By these means you will be able to maintain interest in a long term project, will have a legitimate knowledge of the things you write about and will be less likely to bore others consequently. Write what you know and care about what you write!

Remember, the benefit of keeping a blog instead of other software, is that people are able to engage you in a conversation about your posts. Make sure that you are relatively competent in holding a conversation about the subjects you address in your posts. For instance, we wouldn't dream of blogging about politics because we know nothing about politics.