Tafiti is an experimental search front-end designed to help people use the Web for research projects that span multiple search queries and sessions by helping visualize, store, and share research results. Tafiti uses both Microsoft Silverlight and Live Search to explore the intersection of richer experiences on the Web and the increasing specialization of search. Make sure you check out the “Tree View” link.
This is a neat example of what Silverlight can do to display data in new and interesting ways. As part of this new version of Tafiti, there is a specialized Search Macro for Halo that will search a specific set of websites related to the game.