Hi there, I've got to report three issues:

First, I discovered a small bug in your current release: When trying to safe an article, I simply got a PHP error message saying I can't set a time limit when in safe mode (in fact, safe mode is activated by my provider). So, what to do?
Friendly as always, PHP informed that the error occurs in line 325 in efficient-related-posts.php. The line says:

`set_time_limit(60);`

I tried this to fix it:

`if( !ini_get('safe_mode') )
            set_time_limit(60);`

and it worked like a charm. I recommend adding the safe mode check for future versions. Another thing: I made localization work. The only thing needed for this was to move the _slug defining line at the top of the init function and then add immediately below:

`load_plugin_textdomain( $this->_slug, '/wp-content/plugins/efficient-related-posts/');`

Anyway, the plugin didn't work for me. When I safe a post, nothing is stored in the meta keys, and when I press the "Process" button in the setting, the Plugin tells me, that every thing (in fact: nothing) was done in 0.0 secs. Any ideas? Maybe cause safe mode is enabled?