Jeremey Ronnel from Elbee just released an autosubscribegroup plugin. This plugin automatically subscribes new users to a group or groups designated by tha administrator.
Installation is simple. FTP the unzipped folder to the mod directory of your Elgg installation, then activate it through Tolls Administration. Next click on more information.
A field appears for entering group ID numbers. You may enter as many as you like separating the numbers with a comma. Here’s where to find a group’s ID. Go to the group page in your site and look at the url in the address bar.
The group ID number appears after the word groups in the url. Type in the desired group numbers and click save. Now all new users will be subscribe automatically to the desired group or groups.
This plugin provides much sought after functionality. Many have asked for the ability to autosubscribe new members to groups of common interest to all members. It also helps give users unfamiliar with Elgg a starting point.