The tabs down the side will lead you to an incredible amount of resources, from Sephardic history, surnames and family trees. The websites by country tab is one that I find most useful, as it will take you directly to the databases that exist that will be most helpful for your own research. The list of those countries (below) covers the Sephardic world.
Anyone with Sephardic family should make this site a regular part of your research. Congratulations to Dr. Malka for this great honor.