How should I continue this blog?

So this summer I committed to doing a blog with at least a post every Wednesday. I only missed one week, which considering How much trouble I used to have with essay deadlines in college I consider pretty good. Now the summer is coming to an end and I have Bible studies starting up again. I’ll probably change my regular posts to a different night as I’m looking forward to a Bible study on Wednesdays. As I consider if and how I'm going to keep up this blog I'm thinking of establishing a theme. So, does anyone have an opinion on what theme I should try?  Some ideas I have had:

• Book reviews (It would end up being a mix of general interest books and the Science Fiction I like.)
• Asperger’s Syndrome and my thoughts on my experience with it
• Original fiction (Could I finish a novel if I disciplined myself to post a chapter a week?)
• the Bible and my speculations from Bible study and looking at Theology
• Philosophy and general speculation

Any other Ideas of what it would be interesting to hear from me on? Which of these would you be interested in reading and commenting on? Let me know your vote in the comments.