Just found this which looks great. Downloaded as a plugin and activated but when I put URL in a post it does not embed. On installation info I found
As such, the installation is pretty standard:
Upload iframely.php to the /wp-content/plugins/ directory
Activate the plugin through the 'Plugins' menu in WordPress
No other configuration of the plugin is required. You are good to go.
Are the uploads something other than/in addition to simple installation of the plug-in? If so, how do I do them? If not, any idea why URLs don't produce embed I hoped for?