alexa-daily.rb

require 'rubygems'
require 'nokogiri'
require 'open-uri'

site = ARGV[0]
doc = Nokogiri::HTML(open("http://www.alexa.com/siteinfo/#{site}"))

data = []

doc.css('ul')[4].css('li.geo_percentages').each_with_index do |raw,i|
  raw.css('span.geo_country').each do |country_raw|
    country = country_raw.search('a').first['href'].gsub("/topsites/countries/","")
    data[i] = ["#{country}"]
  end
  
  raw.css('span.geo_number').each do |c|
    data[i] << c.content
  end
end

puts Date.today
puts data.inspect

result

xdite:~ pixnet$ ruby alexa.rb belovely.tw
2009-12-17
[["TW", "4,096"], ["HK", "44,196"], ["MY", "88,085"]]
xdite:~ pixnet$ ruby alexa.rb murmur.tw
2009-12-17
[["TW", "1,132"], ["HK", "8,214"], ["CN", "42,178"], ["CA", "153,678"], ["US", "299,925"]]