scrape

returns a hash reference such as

  {
    subject => 'title of the message',
    image => 'http://img.mixi.jp/photo/member/xx/xx/xxx_xxx.jpg',
    link => 'http://mixi.jp/show_friend.pl?id=xxx',
    name => 'someone',
    time => 'yyyy-mm-dd hh:mm',
    description => 'message body',
  }