This presentation compares and contrasts the features and functionality of various open source indexers such as SWISH, Harvest, WebGlimpse, Ht:/Dig, Isite/Isearch, Zebra, freeWAIS, and MPS. As the size of information systems increase so does the necessity of providing searchable interfaces to the underlying data. Indexing content and implementing an HTML form to search the index is one way to accomplish this goal, but all indexers are not created equal. This case study enumerates the pluses and minuses of various open source indexers currently available and makes recommendations on which indexer to use for what purposes. Finally, this case study will make attendees aware that good search interfaces alone to not make for good information systems. Good information systems also require consistently applied subject analysis and well structured data.