I’ve been blogging on wordpress for a while now.
I must say I wasn’t happy with a lot of things.
First of all you have to write plain html not something cool like markdown.
You can’t use your favourite text editor to write blog entries either.
Unless, of course, you’re using the cool Firefox add-on it’s all text, but that’s not very practical either.

Blogging on GitHub has a lot of advantages.
The nicest of them all is you keep your whole blog in a git repository.
You can use markdown to write blog entries which is a whole way ahead of writing html.
Jekyll makes managing the blog real fun.