MATLAB
I wish to share my work in MATLAB, my singlemost favourite piece of software
A web application that uses MATLAB's power
Basically, the idea is that MATLAB can act a COM server. Any application that can act as a COM client can interact with it. Examples are VBScript, Visual Basic, ASP etc. In this example, I use PERL to connect to MATLAB and return the results to the browser, via CGI.