When I built this blog, I decided to write the post entries in French, and not in English. This obviously reduce the size of the audience, but I believe there are much resources available on the subject I intend to talk about in English; much less in French. I suspect my audience to be young french developers anyway.
It’s not because I can’t write proper English, I lived 2 years abroad and I spend most of my days reading English. We use English for everything written at work. I even loose my words in profit of some English ones. Pretty much like Jean Claude Van Damme.
Also, it’s good practice for me to write in French. I’m terrible at explaining things to other people even in my native language. Writing on this blog should help.