More Motion Capture Data:

Carnegie Mellon Quality of Life Grand Challenge Dataset: Kitchen Capture
http://kitchen.cs.cmu.edu

The Motion Capture Society's gig+ of data
http://www.mocapclub.com/Pages/Library.htm

University/Research Institutions:

C3D Home
http://www.c3d.org/

C3D software tools and applications
http://www.c3d.org/download.htm

Carnegie Mellon University, Entertainment Technology Center (ETC) project
http://www.etc.cmu.edu/projects/mastermotion

Instituto Nacional de Matemática Pura e Aplicada (IMPA), Vision and Graphics Laboratory (VISGRAF), motion capture research
http://www.visgraf.impa.br/Projects/mcapture

Ohio State University, Advanced Computing Center for the Arts and Design, motion capture lab & data
http://accad.osu.edu/research/mocap

Rick Parent, Chapter 6.7 Motion Capture, "Computer Animation: Algorithms and Techniques", Morgan-Kaufmann, San Francisco, 2001.

Rick Parent's motion capture links (e.g. motion capture file format documentation):
http://www.cse.ohio-state.edu/~parent/animation/index1.html#mocap

University of Southern California, Institute for Creative Technologies, Graphics Lab motion capture library
http://www.ict.usc.edu/graphics/animWeb/humanoid/

University of Washington, Department of Computer Science & Engineering, motion capture lab
http://grail.cs.washington.edu/mocap-lab/

Commercial Vendors:

Ascension Technology Corporation - Flock of Birds
http://www.ascension-tech.com/products/flockofbirds.php

Measurand Inc.
http://www.measurand.com/

Motion Analysis Corporation
http://www.motionanalysis.com/

Northern Digital, Inc. - Optotrak
http://www.ndigital.com/optotrak.html

Polhemus, Inc.
http://www.polhemus.com/

Vicon Motion Systems
http://www.vicon.com/