This tremendously comprehensive Web site aims to facilitate "post-genomic" research on the biochemical processes of _Plasmodium_, the species of protists that cause malaria. The Web site, sponsored by the Computation Authority of The Hebrew University of Jerusalem, offers a compilation of _Plasmodium_ metabolic pathway maps culled from other, more general biochemistry sites. Each map is linked to others so that users may trace the fate or origin of each metabolite. The maps include links to PubMed abstracts and related Web pages for more detailed information. Through an ask-the-expert feature several experts on the biochemistry of malaria parasites are also available to tackle questions from "active investigators" making use of the Web site.