If you would like to make a donation to the project please use the appropriate function on the Sourceforge project page (the "Donate to project" link on the top right).
Here I will list all donations that the program received, that can be either money via paypal or e.g. licenses.
The project received 150 USD on 29.11.2006, thanks very much! :-).
I got a license for the "YourKit Java Profiler", which seems to be really good in finding memory leaks and performance problems. They asked me to publish the following text:
YourKit is kindly supporting "Earth3d" project with its full-featured Java Profiler. YourKit, LLC is creator of innovative and intelligent tools for profiling Java and .NET applications. Take a look at YourKit's leading software products: YourKit Java Profiler and YourKit .NET Profiler.
If you would like to make a contribution to the project, e.g. a new function or a link to a project that uses Earth3D for some purpose, please send it to Webmaster.