Users can search for a database containing the appropriate information that is sought.
Often these databases contain information that cannot be found elsewhere on the web. Users can browse listings, or Lycos will suggest appropriate databases within its own search results. If you click through, you'll discover some important cancer-related sites listed, with links that lead straight to their search pages. You can then select a resource and try a specific search there. So to get the most out of the Invisible Web catalog, change your search strategy at Lycos.