I would argue, unless you specifically NEED the blog format for some reason, to use whatever you use for your project documentation. i.e. if you program mostly

I would argue, unless you specifically NEED the blog format for some reason, to use whatever you use for your project documentation. i.e. if you program mostly with python then use Restructured Text and sphinx, etc. Why? because then you can't say you are unfamiliar with the tools when it comes time to writing docs for your project, something we all suck at doing.