From 4th to 6th on November 2009 in Poznań, Poland there was the i3 Conference: Internet – infrastructures – innovations. During the first day of the conference, in the session titled “INTERNET: Active Internet” Agnieszka Lewandowska gave a presentation titled “Federacja Bibliotek Cyfrowych – interoperacyjność zaawansowanych usług sieciowych realizowana na skalę krajową” (Digital Libraries Federation – the interoperability of advanced network services implemented on a national scale). The presentation was prepared by Agnieszka Lewandowska, Tomasz Parkoła and Marcin Werla from the PSNC Digital Libraries Team. You can see the recording from the presentation at the conference website.