Don't forget first all the Mathematicaresources, Forum Index, Packages, and the User web pages.
A special thank for all freely available Mathematica tools provided in the links below!
Scientific Arts LLC MATHEMATICA Tools written by David Reiss. Each post on this site describes a Mathematica tool available from Scientific Arts. Many are free.
The Mathematical Explorer is an invitation to explore some of the most fascinating topics in mathematics from ancient Greece up to the 21st century. Contains a limited-functionality version of Mathematica.
RM Math Framework Edition is a whole-class teaching system which utilizes interactive whiteboard technology to deliver a dynamic, highly visual and standards-aligned middle school math curriculum. Incorporates toools such as Geometer, Sketchpad, Wolfram Mathematica and RM Easiteach to motivate students.
mathestate is a proprietary set of free data-driven mathematical analysis tools designed to analyze investments using real data and custom formulas.
Minimal Surfaces, Bloomington's Virtual Minimal Surface Museum by Matthias Weber.
Andrew Moylan General relativity, Levinintegrate package, NAntiDerivative, NDerivative, SubscriptSymbols.
Jens Nöckel: Creating and Post-Processing Mathematica Graphics on Mac OS X
Jens Nöckel Running Mathematica without the Notebook interface.
Scientific Arts and David Reiss Notebook Options Inspector, Wolfram|Alpha Lookup Tool, A WorkLife FrameWork, NotebookStateSaver, FunctionsWithOption and Some Other Useful Notebooks...
Daniel Reeves MASH (Mathematica Scripting Hack) and Math-Sockets.
Verbeia Economics, Statistics and Music tools by Luci Ellis and Ted Ersek
DirectMathis a mathematical word processor and easy to use front end to the Mathematica computer algebra system, developed by Joe Gregg at Lawrence University in Appleton, Wisconsin.