This is a lighting group that has published research on the effects of daylighting.

This is one of the most frequently used daylight modeling computer simulation programs.  AGi32 offers lighting analysis software for calculations and renderings of electric lighting and daylighting systems.

The Texas Department of Transportation offers this guide to the Rational Method, which, it notes, is appropriate for estimating peak discharges for small drainage areas of up to about 200 acres in which no significant flood storage appears.

This is a database of window brands, VLT and U-values for different glazing manufacturers.  The program provides a versatile heat transfer analysis method.     

This is the American industry authority on lighting levels and energy use.  The Illumination Engineering Society of North America (IESNA) publishes several design guides for recommended lighting levels, daylighting and much more.

This is an excellent resource for researching how to apply different daylight strategies and the implications the design strategies may have.  Includes information on materials and methods of construction as well as calculation tools and software resources.

A list of absorption coefficients for common building materials.

A relatively basic calculator for the Sabine calculation, one method to determine RT. May provide guidance on RT calculations.

A meta-analysis of studies of a large sample of commissioned buildings, this paper, which is concerned with national-level energy goals, was presented at the 2005 National Conference on Building Commissioning, and is a shorter form of a study sponsored by the U.S. Department of Energy.

This article, which appeared in the ASHRAE Journal, uses data for 19 actual projects to look at commissioning costs in various ways. (Ronald J. Wilkinson, 2000)