This organization promotes sustainable agriculture. Their website provides publications on production practices, alternative crop and livestock enterprises, innovative marketing, and organic certification, and highlights...

From Australian Museum Online comes this informative presentation on biodiversity. This searchable site allows visitors to learn fun biodiversity facts (such as the evolutionary history of the platypus and the secret...

This collection, created by John McClain of Cornell University, of macros for Microsoft Excel addresses numerous topics like decision trees, the Central Limit Theorem, queueing, critical path analysis, regression with...

This site contains lecture notes regarding avian reproduction from Dr. Gary Ritchison's Ornithology course at Eastern Kentucky University. The lecture notes are interspersed with some especially nice images and diagrams...

The Aviation Digital Data Service (ADDS) makes available to the aviation community digital and graphical analyses, forecasts and observations of meteorological variables in the United States. Analyses, forecasts, and...