For the preliminary experiments presented in this section, we ran BINGO! for a time period of several hours (thus simulating a situation where the human user demands information overnight) on an Intel 1GHz computer with 1 GByte of memory under Solaris 5.8. The initial experiments used the example ontology file. The bookmarks were manually compiled by selecting up to 50 URLs from the corresponding categories of www.yahoo.com. Following informations are available online: