To find out more about the Zambezi River check out the Encyclopaedia Brittanica. It includes images, related articles and in depth background of Africa's fourth largest river.

To read about the rising levels of the Zambezi River, The Namibian has the full story.

The Moderate Resolution Imaging Spectroradiometer (MODIS) on NASA's Terra satellite captured images of the floods in Namibia on March 23, 2009 and also shows the region before the wet-season rains started on January 14, 2009.

ReliefWeb is also another great resource to learn more about the areas affected by floods in 2009 in the southern African region.

AllAfrica.com is a good source of news from southern Africa

The BBC's Africa page even gives weather reports for many cities.

The aid alliance Action by Churches Together is active in southern Africa, and issues regular briefings.

The Famine Early Warning Systems Network (FEWSNET), funded by the U.S. government, gives regular updates, including information on rainy seasons in different regions of each country.

Volunteers from the national Red Cross societies are on the scene. They publish information about their work through the International Federation of Red Cross and Red Crescent societies (IFRC).

AlertNet's Who Works Where gives contact details of aid agencies working on the ground.