I've just added three new blog sections, and nope, I haven't put the links on the navigation on the top of the blog pages yet. With the many different sections of this blog, and possibly with more sections still coming, it may be useful to separate them into categories, so this will be the next thing I'll be working on.
I'm planning on a CSS menu for a navigation. Honestly, I haven't tried anything like this yet, so I'll have to do a little bit of research. I should go start and read some tutorials over the internet.