If you’re trying to cross-promote your blog posts or just keep readers informed through related content, you’ll probably want to add a related posts plugin to your WordPress site.
Depending upon the plugin, similar posts will be automatically selected for you, or you’ll be asked to select specific articles for recommendation. This is great for blogs with lots of older content that hasn’t seen much traffic.
In addition to the obvious benefit of encouraging further reading on your blog, Joost de Valk, owner and creator of the popular Yoast.com, says:
One way of getting search engines to get to your older content a bit easier, thus increasing your WordPress SEO capabilites a LOT, is by using a related posts plugin. These plugins search through your posts database to find posts with the same subject, and add links to these posts.
There are quite a few related posts plugins but I tend to stick with custom code in my own theme. A very good alternative is Microkid’s related post plugin, which lets you manually pick related posts. This might cost a bit more time before you hit publish but might very well be worth your while.
There are also a lot of plugins that will automatically link certain keywords to certain posts. I do not like this at all as I find it to look very spammy.
The plugin mentioned above hasn’t been tested / updated recently so I can’t speak to it’s stability (I also can’t speak against it…sometimes plugins aren’t updated because they were built rock-solid the first time.) That said, here are a few plugins with decent ratings that you might want to test out:
As with all plugins, I encourage you to test a few out and see which one fits best. You know your content and readers better than anyone, so let that knowledge guide you.