ScienceLives Online   

Science articles on a variety of topics, from ecology to astronomy.

SpaceDesign - Supplying the world with worlds   

Welcome to the home of the new and improved space-pack v.3.0. Download today and start creating the most amazing space art presentations with Powerpoint, flash, Swish, Adobe Photoshop etc.

Aimstar Earth Science Software   

Educational, earth science software including clouds, earthquakes, forests, global warming, great lakes, the ocean, ozone, polar ice, volcanoes, and wetlands. K-12 teacher and student resource.

Aspire Software: SigmaPlot - SigmaStat - SigmaScan   

Also offers AutoSignal, Biblioscape, OMatrix, PeakFit, TableCurve2D, TableCurve 3D, AutoSignal, SPSS, and Systat graphing software, math software, bibliography software, linear algebra and plotting software.

Percevia.com   

The best bird ID search engine on the web, find any bird in North America from just a few identifying marks.