It might have been covered elsewhere, but with the Ning search engine, I can't find it =/

We use a thee-columns layout and our Groups home pages have that third column for members avatars and the group's pages. I'd like to put some graphics and links below the division that contains the pages listing.

This is where ads are usually shown.

Below xg_span-4 xg_column.

We are ad-free and this is a lot of wasted space we'd like to put to good use.