In a Yahoo-owned Tumblr post titled “Anchors aweigh!,” Marissa Mayer officially announced that the Internet company has added Katie Couric as a “global anchor,” beginning in 2014. As expected, Couric “will lead a growing team of correspondents at Yahoo News who will cover the world’s most interesting stories and newsmakers.” She’ll continue to host her daytime talk show, which also has a Tumblr, for ABC while it lasts.