Wolfram Demonstrations upgraded to version 7
The Wolfram Demonstrations project has been updated to take advantage of the new features of version 7 of Mathematica and Jeff Bryant has written a great post about it on the Wolfram Research Blog. As you might expect, Wolfram have also upgraded their free Mathematica player which allows you to run all of their demonstrations without a Mathematica license.
Some of the new demonstrations are very pretty! I particularly like their new vector field plotting routines as shown in the demonstration below which calculates the electric field pattern formed by three point charges.
The new image processing routines that Wolfram have added to Mathematica allow for the easy production of some very beautiful demonstrations. Here is one by Peter Overmann that simulates a photographic technique called the Orton Effect.
