In the never ending war against Orkut spam (which seems to be increasing lately, at least in my Orkut inbox) Google has unveiled a new tool for community owners to help keep their forums clean and on topic.
Basically this feature allows forum owners to restrict access to communities based upon email (like @gmail.com, @yahoo.com or @ilovemyjob.com).
(Image Credit: Gaurav of Orkut Plus)
This feature may not only reduce spam from "strange email addresses," but enable businesses, charities and schools to establish public networks that are only accessible to those with the approved email address.
For details on how to set this up, please visit Orkut Plus!
Note: I am not seeing this yet in any forums that I own, but if you are seeing it within yours, let us all know how you feel about it (or even how it can be improved) in the comment section below.