Broadcast MU is a plugin for WordPress MU which allows you to broadcast a post to one or more other blogs on the same installation of WordPress MU by simply checking the box next to those you wish to send it to.

It was created out of a growing need for such a feature in a WordPress MU installation which I manage (gdnm.org) for the University for the Creative Arts – Epsom (UK) and so it should see regular maintenance however I have not been able to test it on multiple installations so please be gentle if it doesn’t work first time for you. Just reply to this topic and I will do my best to help.

http://wordpress.org/extend/plugins/broadcast-mu/

Known issues

UPDATE: This issue is caused by post revisions being enabled, you can disable them by adding the following line to your wp-config.php file at present there is no known solution…

define('WP_POST_REVISIONS', false);

At present there is an issue which causes the plugin to cause a PHP error, I am trying to work out what is causing this as I manage this installation of WPMU on my own site which is 2.8.4a and also another (gdnm.org) which also runs 2.8.4a and both run the plugin fine until you try to submit a post at which point the instllation here breaks and shows an error, whilst the other installation on a different server is fine.

I am not sure why this is happening and I have tried fixing it but so far the help from the IRC community has been sparadic and I am unable to track down the issue my self. I will be working on this so please let me know if you have this issue, it reports the error as a problem in one of the php files in /wp-admin and reports that the function was called but was missing 2 of the 4 required input variables, not sure why but I will work on this when I can.