Re: oEmbed for BuddyPress plugin – out now!
You have to add support for Smugmug to WordPress’ embed provider whitelist yourself.
Smugmug offers oEmbed support so this should be quite easy.
You can either add Smugmug support via wp_oembed_add_provider():
Or if you can’t wait, you can upgrade your copy of /wp-includes/class-oembed.php to the latest trunk version:
As the next version of WP will offer oEmbed support for SmugMug natively.