As well, the proceedings from the European Conference on Research and Advanced Technology for Digital Libraries, 2006 (ECDL 2006) are available in paper or digital format, but not for free. You will need a Springer subscription.
Julio Gonzalo, Costantino Thanos, M. Felisa Verdejo, Rafael C. Carrasco (Eds.): Research and Advanced Technology for Digital Libraries, 10th European Conference, ECDL 2006, Alicante, Spain, September 17-22, 2006, Proceedings. Lecture Notes in Computer Science 4172 Springer 2006, ISBN 3-540-44636-2
The Digital Bibliography & Library Project (DBLP) provides handy links to the individual articles, which are available (if you have licensed access) through SpringerLink. See their page on ECDL 2006 proceedings, or their links for all previous ECDL conference proceedings.
The presentations (i.e. the PowerPoint files) are not online yet; I don't know when they will be.