* OPML: //Outline Processor Markup Language: RSS, Drupal:aggregator//
  * Facebook Graph Search: [[http://en.wikipedia.org/wiki/Facebook_Graph_Search|..wp]] [[http://www.sueddeutsche.de/digital/neue-graph-search-von-facebook-kennt-mich-jemand-1.1718917|Artikel,2013]]
  * [[https://www.documentcloud.org/public/search/]]