Shortly after the 2.0 release Octopress added the `source/_includes/custom` directory. If you don't have this, you'll want to [update](/docs/updating) because it's really nice.
If you want to add a section to your sidebar, create a new file in `source/_includes/custom/asides/`.
Since many people probably want to add an About Me section, there's already an `about.html` file in there waiting to be added. Here's a look.
{% codeblock About Me (source/_includes/custom/asides/about.html) %}
{% render_partial ../.themes/classic/source/_includes/custom/asides/about.html raw %}
{% endcodeblock %}
Whenever you add a section to the sidebar, follow this pattern, with a `<section>` block and an `<h1>` for a title. To add it to the sidebar, edit the `_config.yml` and add it to the list of asides.
In the configuration above I've added the about page to the blog index and post pages. Since `page_asides` isn't being set, it will inherit from the default list.
### Changing the <HEAD>
If you want to add to the `<HEAD>`take a look at `/source/_includes/custom/head.html`.
{% render_partial ../.themes/classic/source/_includes/custom/head.html raw %}
{% endcodeblock %}
Here you can easily change or remove the [Google Webfonts](http://google.com/webfonts), insert javascripts, etc.
### Changing the Navigation
As soon as you add pages to your site, you'll want to put them in the main navigation. The links come from `/source/_includes/custom/navigation.html` which looks like this:
{% render_partial ../.themes/classic/source/_includes/custom/navigation.html raw %}
{% endcodeblock %}
The `href` for each link begins with `{% raw %}{{ root_url }}{% endraw %}` (this helps Octopress write urls differently if a site is deployed to a subdirectory).
If you're deploying your site to a subdirectory like `yoursite.com/octopress` you'll want to add this to any links you add.
### Changing the Footer
You can customize the footer in `source/_includes/custom/footer.html` which looks like this: