Search Engines or Categories?

By building indexes based on the actual content of web-sites, the difficult task of categorization is avoided. Instead of the manual job of classifying sites (human intelligence), the software has to be smarter (artificial intelligence techniques)

An advantange of search engines is that you are able to find information what is published, but was not considered as most important by the author. For instance, you publish information about the TNNC conference in Lund, including pictures, and someone is looking for pictures of the cathedral in Lund. By a description of the site, no one could have found out that the pictures would be available, but with a search engine they might be found.