There are multiple challenges and questions related to advertising to perspective customers in the age of multi-screen and multi-tasking. The seminar Aljoša held at Webit 2013, is addressing the key challenges of cross channel advertising, preconditions for its successful execution and the key benefits of cross channel advertising. Aljoša is a founder and CEO of Httpool, a cross channel advertising network covering most of the CEE, with presence in Asia and focus on international markets outside US and WE.