I would like to announce that we have updated the Seaside tutorial of the Software Architecture Group (http://www.hpi.uni-potsdam.de/hirschfeld/seaside/tutorial). Now it can be applied with the current Seaside 3.0 version without any problems. Besides a revision of all chapters, we have especially changed the persistence chapter and added new sections about SandstoneDB, PostgreSQL, and GemStone.
Most of the update was done by Lauritz Thamsen and Tobias Pape.
Thank you very much.