YouTube CEO Susan Wojcicki said during a SXSW talk this week that the company would be making a more concerted effort to stem the spread of misinformation on its site. Specifically, YouTube plans to start adding "information cues," including text boxes that link to third-party sources like Wikipedia, to videos covering hoaxes and conspiracy theories. But in a statement, Wikimedia Foundation has now said that neither it nor Wikipedia were told about YouTube's announcement ahead of time. "In this case, neither Wikipedia nor the Wikimedia Foundation are part of a formal partnership with YouTube," the company said. "We were not given advance notice of this announcement."