Killed by rate limit.

get_followers_website.rb

require "twitter"

client = Twitter::REST::Client.new do |config|
    config.consumer_key        = "hoge"
    config.consumer_secret     = "fuga"
    config.access_token        = "piyo"
    config.access_token_secret = "moge"
end

File.open("website.txt", "w") do |file|
  client.friend_ids.each do |id|
    user = client.user(id)
    website = user.website || "none"
    file.puts "#{user.name}(@#{user.screen_name}):#{website}"
  end
end