There are a few out there - check out
http://www.shelldorado.com - the links page has a rundown of the scripting sites available.
There's also
my site 
- I've added a
Tips and tricks area to my site where people can submit stuff, and I've also got a
script repository,
full programs, and some
other stuff - of course all non-commerical, distributed under the terms of the
GNU General Public Licence...
Cheers
ZB