def google_plus_button(options={})
      href = options[:url] || request.url
      options = Hash[options.map {|k, v| ["data-#{k}", v] }]
      options.merge!({:class => 'g-plusone', 'data-href' => href})

      content_tag :div, '', options
    end
def google_plus_button(options={})
      href = options[:url] || request.url
      options = Hash[options.map {|k, v| ["data-#{k}", v] }]
      options.merge!({:class => 'g-plusone', 'data-href' => href})

      content_tag :div, '', options
    end
Google +1 button
 http://www.google.com/webmasters/+1/button/