interactive design houses

General Design

IDEO

http://www.ideo.com/

Frog Design

http://www.frogdesign.com/

Smart Design

http://www.smartdesignusa.com/

Snibbe Interactive

http://snibbeinteractive.com/

Digithaus

http://www.digithaus.com/index.pl

James Clar & Associates

http://www.jamesclar.com/index.html

Adaptive Path

http://www.adaptivepath.com/

Stamen Design

http://stamen.com/

Interactive Design for Marketing

R/GA

http://www.rga.com/default.htm?v=1.1

Museum Design

Ralph Appelbaum Associates

http://www.raany.com/

Thinc Design

http://www.thincdesign.com/

The Exploratorium

http://www.exploratorium.edu/

Sort of Related

Graffiti Research Lab

http://graffitiresearchlab.com/

Make Magazine

http://makezine.com/