require 'rubygems'
require 'open-uri'
require 'hpricot'

doc = open("http://rinexus.com/blog/2009/01/rhode-island-twitter-sound") { |f| Hpricot(f) }

twits = []

(doc/'.content/p').each do |p|
  p.inner_html.each do |line|   
    matches = line.scan(/@(\w+)/m)        
    twits.concat(matches) unless matches.empty?
  end 
end          

twits.flatten!
twits.uniq!
      
twits.each do |twit|
  puts twit
end