> How can I write extensions to ruby?
> 

 Michael,
  Unfortunately, I don't have a wonderful answer except
to read the readme.ext that comes with the Ruby distribution.

  That's where I got started.  It takes a bit of work to get
started but once you've got it figured out, it seems that writing
extensions for Ruby is very nice.

  Let me know if the readme.ext helps.

Thanks.
Bryce