Ifo Business Climate Survey
  
German business success indicator publication. It's like TechCrunch for Berlin, or something like that. It surveys German CEOs and business leaders, and asks a ton of questions like "how ya feelin' relative to last year?"
We have analogous pubs in the U.S., just less...history. The German publications particularly matter, in that Germany is the financial leader of Europe and is the only reason the euro still exists in its present form. So this survey's results are followed copiously by many. Germans, and non.