By VINDU GOEL
Yahoo promoted Simon Khalaf, who joined last year when his start-up was acquired, to oversee the company’s home page and main mobile app. But David Karp, the head of the Tumblr blogging platform, was effectively demoted as the company announced he would now report to Mr. Khalaf.
Published: April 9, 2015 at 08:00PM
from NYT Technology http://ift.tt/1Fvn6jy