The highlights of the post are the link to this Wired article about the economy of screen scraping (great article) and this screencast about how to use Dapper that I finally recorded.
E. Adar, J. Teevan, S. Dumais, und J. Elsas. Proceedings of the Second ACM International Conference on Web Search and Data Mining - WSDM \textquotesingle09, ACM Press, (2009)