We are now using YARPP, “Yet Another Related Posts Plugin”
It seems that, ironically, there are a lot of plugins of this nature.
Now, on all posts, similar posts will be displayed (unless the computer could not find a similar-enough post to include).
YARPP’s short description goes as follows:
“Returns a list of related entries based on a unique algorithm for display on your blog and RSS feeds. A templating feature allows customization of the display.”
Check out YARPP’s homepage and see if it will work out just as well for your blog.
As usual, this post is mainly to give credit. We use many plugins, and the most useful of those we will choose to share. Technically, it can be a security risk to tell users what kinds of plugins we use; however, we are too grateful for the programmers to not give any credit.