If you want to be able to create multiple blogs for your site — for multiple topics, services you offer, etc — all you need are categories and tags!
What are the categories?
Categories are the main way you want to segment out your content. These should be your main topics that you want to cover, and can have short or long names. This works if you have multiple locations, services, or other major way you want to split your blog content. Your categories should be broad, and it is best to keep these to a minimum, so your users can easily find your content.
What are tags?
Tags are more granular than categories, and should be kept to 1-3 words as much as possible. You can add multiple tags to a post, as they should be used to help describe what kind of content is in each particular post — think of them as keywords.
How do I set this up?
To get started setting up your categories, head to Blog > Options > Categories & Tags. From there, you can add and remove your categories and tags. In the example below, you can see a blog set up for a language website. They are using the languages for categories as each post will pertain to just one of those languages. Their tags are more broad, however, and are able to be used no matter which category the blog post is in.
How do I connect my users to just one part of my blog?
You don't have to put your full blog in your navigation! If you prefer for your users to access your blog based just on the categories, you can snag the particular category link to add to your navigation or within one of your pages. You can find this link by heading to your blog post and clicking on the category name, or use the URL scheme below (replacing the part between the [brackets]):
Note: Make sure you've dragged your blog to the Online section of your navigation, to make sure it's published but not in your main navigation.