I never noticed that before that the new forums are only focusing on projects, not on models and so on.
But, they actually fulfill the old role of showcase 1 and showcase 2.

http://www.puppenheim.org/
http://www.wuerfels-welt.de
Old Game Tutorial: http://www.puppenheim.org/MITutorial.zip
Free Game Editor: http://puppenheim.org/AlienalsWeihnachtsmann.zip
http://www.puppenheim.org/blender_starting_main_settings.txt