DouKaku?

require 'Win32/Console' # http://rubyforge.org/projects/win32console
require 'open-uri'
require 'uconv'

$cp = Win32::Console.OutputCP()
#ENV['HTTP_PROXY'] = "http://proxy.example.com:8080/"

uri = "http://ja.doukaku.org/feeds/comments/"

begin
  str = open(uri).read
rescue
  $stderr.puts $!
else
  if $cp == 932
    output = Uconv.u8tosjis(str)
  else
    output = str
  end
  print output
end