The lecture itself will be about dirty details of a modern day search engine. E.g. How does google handle 1 billion users who issue 100 billion search querys on a monthly basis? What does it take to index a web page just seconds after it's been published? Dusan Omercevic - a search engine expert currently working for Zemanta and who previously lead the development of najdi.si, will provide you with the answers to these kinds of questions.