This densely written site provides a comprehensive short overview of the Fatamid Empire. The Institute has also published a recent book (available in ebook format) about the Fatamids.
This brief history of Cairo describes its founding as a city under the Fatamids.
Over 300,000 historical documents on the Jews of Cairo. Some can be seen online.
This site provides a brief overview of the extensive trade of the Fatamids, a fact borne out by the map.
Map below shows the location of some of the features of the map.
View Cairo to Constantinople in a larger map