Other
Siam/mathematical Modelers Look to an Uncertain Future
A summary of error and uncertainty considerations, presented at an annual mathematicians' meeting. Not terribly deep, and covers the gamut of concerns about modeling of the real world with inadequate data or math tools. On target. This...
University of California
Univ. Of Melbourne: Managing Uncertainty in Gis
A unit of the NCGIA core curriculum in GIS (Geographic Information Science), the author gives a full discussion of uncertainty, its sources, how to deal with it, what plans to make. Very thorough.
National Institute of Standards and Technology (NIST)
Uncertainty of Measurement Results
A heavily mathematical discussion by the National Institute of Standards & Technology, attempting to quantize uncertainty.