June 1, 2001:

PLAY is a Swedish HCI research studio which "investigates and invents the future of human-computer interaction." They've published a bunch of interesting papers,
on interface topics from Baby Faces to href="http://bond.viktoria.gu.se/groups/play/publications/2000/phd/bjork/abstract.html">Hierarchical Flip Zooming to Designing Everyday Computational Things to Pirates!.