Lets assume that you own a number of zines or small blogs that are all different in theme, and all rest on seperate domains:
Visitors to these sites would assume they are all completely independent of each other, and that none are related (unless you specified it).
But lets assume that you own a single domain and place each blog inside of a dedicated sub-directory:
In this case,
/x/ is a really a sort of fake directory, containing an index page that automatically redirects back to example.com.
Now the problem is that visitors to the site will make the assumption that you own more than one blog, and doing a search for example.com/x may result in them finding the contents of your other online blogs.
So, without registering multiple domains, is there a way to make it appear that the blog a visitor is looking at is the only one you own?