Nebe, Gabriele
Universität Ulm. Integral representations of finite groups and lattices, orthogonal representations of finite groups and group rings over p-adic integers.
http://www.math.rwth-aachen.de/homes/Gabriele.Nebe/index.html.en

ATLAS of Finite Group Representations
Representations of many finite simple groups and related groups such as covering groups and automorphism groups of simple groups. Available by FTP in alternative formats: Meataxe ASCII, Meataxe binary, and GAP.
http://web.mat.bham.ac.uk/atlas/

Say...
Text-to-speech translator which also reads ASCII representations of the IPA.
http://wwwtios.cs.utwente.nl/say/

Data Representations, Inc
Creates products and services for wireless platform.
http://www.datarepresentations.com

Zhang, Jiajie
External representations (University of Texas at Houston, USA)
http://acad88.sahs.uth.tmc.edu/people/zhang_jiajie.htm

Computer Algebra Systems
Presentation on CAS representations as related to MathML and OpenMath.
http://dlmf.nist.gov/about/Events/fateman-2000-11/sld001.htm

Weiss, Alfred
University of Alberta. Group representations and number theory.
http://www.math.ualberta.ca/Weiss_A.html

Zacks, Jeffrey
Mental representations and transformations (Washington Univ., St. Louis, USA)
http://iac.wustl.edu/~jzacks/

Lie and Jordan Algebras, their Representations and Applications
Guaruja, São Paulo, Brazil; 13--18 May 2002.
http://www.ime.usp.br/~liejor/

(Germany) Bielefeld BIREP
Representations of Finite Dimensional Algebras and Quantum Groups.
http://www.mathematik.uni-bielefeld.de/~sek/