User queries in search engines and Websites give valuable information on the
interests of people. In addition, clicks after queries relate those
interests to actual content. Even queries without clicks or answers imply
important missing synonyms or content. In this talk we show several examples
on how to use this information to improve the performance of search engines,
to recommend better queries, to improve the information scent of the content
of a Website and ultimately to capture knowledge, as Web queries are the
largest wisdom of crowds in Internet.