Yahoo, once a giant and a darling of the Internet, has a reverse Midas touch these days. Anything it touches seem to be in danger of dying, one way or another. And, yes, that includes Yahoo itself. Although Tumblr still has a massive following, it has recently fallen out of favor among netizens and has even gained a questionable reputation. In order to adapt to the the latest trends, most of which revolve around video chats and live streaming, Tumblr has launched Cabana, which, in a nutshell, lets you watch a video with friends while also having a video chat with them.