The Southern Africa Human-development Information Management is an OCHA initiative which combines development information with Disaster management.

It is a large website with many different looking sections. The information is cut up into countries, development themes, and types (see the side menu).
Metadata is prominent for map downloads. Documents don't seem to be tagged but are quite findable.

The site is full of external links to all kinds of relevent sites. Even the photo gallery has links to other photo galleries.

Some bandwidth optimisation seems to have been done, but could be improved, especially given the amount of rural users.

Overall, and impressive and comprehensive service addressing the huge needs of the region.