Is there a way I can have a single Jekyll website have more than one blog? I currently want to have two blogs in one site.
Your best bet would be to look into the data files feature. You can put .markdown
files in a separate folder in your source
and link to them as you post. This does mean that in order to make a post, you'll need to write a data file entry, but you can host as many "blogs" as you'd like, each with their own folder. Posts will automatically have the folder they're in as the url. I use this method for my own personal blog and portfolio.
Either that, or you may want to look into collections: http://jekyllrb.com/docs/collections/