I decided to uninstall this plugin after discovering it takes so much resources from my server (shared hosting environment).
Once I did that, I discovered to my horror that it messes up the sidebar on the single post template.
Apparently it ads a call to the single post template and 'forgets' to remove it after the plugin is removed.
If you just want to display related posts, the applicable module in Jetpack does the job great.
If you want to monetise by displaying posts from other sites, I'd use the 'related posts' module in Shareaholic.