You're using the most fertile environment for new GUI's right now; the web. Rather than everyone using the interfaces developed by a handful of designers at Microsoft, Apple or various universities, now every web site is essentially a new GUI. Sure, almost all are crap, but there is also some truly innovative work being done with Flash and DHTML.
There were no witches in 'Hamlet', you're probably thinking of 'MacBeth'
You're using the most fertile environment for new GUI's right now; the web. Rather than everyone using the interfaces developed by a handful of designers at Microsoft, Apple or various universities, now every web site is essentially a new GUI. Sure, almost all are crap, but there is also some truly innovative work being done with Flash and DHTML.