How many ruby framework available in market??

Hi all,
      I wanna know how many ruby framework available in the market as of
now and using them any company created any website or not.
I searched on net but did not find the appropiate answer.
Some which i know:

1) ROR
2) IronRuby
3) JRuby

These three only but don't know any site name which has been created
using IronRuby or JRuby.

Please help me out.

Thanks
Varun Goel

Hi all,
     I wanna know how many ruby framework available in the market as
of
now and using them any company created any website or not.
I searched on net but did not find the appropiate answer.
Some which i know:

1) ROR
2) IronRuby
3) JRuby

These three only but don't know any site name which has been created
using IronRuby or JRuby.

I think your slightly mixed up. JRuby, IronRuby, MRI (the standard C
implementation), Rubinius etc... are implementations of the ruby
language itself. RoR is just a bunch of libraries on top of that.
IronRuby is still a long way from being finished, so I would be very
surprised if people were using it in production. Just off the top of
my head, I know that mingle (by thoughtworks) and oracle mix run on
jruby.

Fred