What Should I Write About?

Hello everybody! I am starting anew today to write a blog. Maybe you can help me by telling me what you would like me to blog about. Do you want me to write about my books, my life as a writer, dos and don’ts, or all of those combined? Do you want me to interview other writers? Do you want a diary type blog? Do you want to know about my characters? I am looking forward for your advice to get me started.