(Hat Tip: Orkut Plus)
Google has enabled Orkut forum owners to add additional owners to the forums, giving users more control over their communities.
Aside from having all of the powers of a moderator, co-owners can un-delete a forum in case the previous owner no longer desires it, as well as assume ownership of the forum if a community has been hacked.
Forum owners can add co-owners to their forums by clicking on the "add co-owner" link which they can find on their community profile (above the "add moderator" link)...
...then typing in the name of a member of the forum that they want to add...
...then hit the "search members" button after selecting the person. After that, Orkut should bring you to a new page in which you can then grant that individual co-owner status by hitting the "grant co-owner privileges" button below.
You can add up to two co-owners to each forum, which a lot lower than the 10 moderator limit set by Google. However, I would recommend users only adding co-owners to their communities if they are hosting a forum that has a history of being stolen via hackers (or at least many threats/attempts in the past).
I would also suggest forum owners only grant people they highly trust (or have met offline) with this status, as co-owners do have the ability to remove the original owners threads.