writes "Yesterday, German technology news site Heise changed their social Like-Buttons to a two-click format. This will effectively disable unintentional automatic tracking of all page visits by third-party social sites like Facebook, Twitter or Google+. Less than 24 hours later over 500 websites have asked about the technology. Facebook is now threatening to blacklist Heise.
German source: http://www.heise.de/newsticker/meldung/Facebook-beschwert-sich-ueber-datenschutzfreundlichen-2-Klick-Button-1335658.html"Link to Original Source