Win "be the nth follower" contests

follow_alert.rb

require 'capybara'
require 'capybara/dsl'
require 'capybara/webkit'
include Capybara::DSL

account = ARGV[0]
count = ARGV[1]

Capybara.current_driver = :webkit
Capybara.app_host = 'http://mobile.twitter.com'

visit "/#{account}"
followers = page.find(%Q{a[href="http://mobile.twitter.com/#{account.downcase}/followers"]}).text.split(':').last.to_i

while true
  if followers == count - 1
    %x{say 'Follow #{account} now to win.'}
  else
    puts "Checked, #{followers} followers. Sleeping for 15 seconds."
    sleep 15
  end
end

usage.sh

gem install capybara capybara-webkit
ruby follower_count.rb AccountWithFreeStuff 1000