Chromecasts can finally be added to speaker groups
(Android Central)

Chromecasts are cheap enough to get them all, but we can guide you to make sure you get the one you need. Streaming media isn't a new idea. Internet radio and video sharing sites have been around for over a decade, and smartphones might not have become as popular (some say necessary) as they are today had Apple and Google not worked together in 2007 to bring H.264 YouTube streaming to the first iPhone. We want to watch and listen to the things we like on our own schedule, and we all want it to be easy to do while still looking and sounding great. While there are dozens of different ways to stream media from the internet to your TV or stereo, Chromecast remains one of the most popular options because of the way you initiate things. Clunky and slow user interfaces are replaced by your phone or your web browser with the ability to handoff control between devices and to allow multiple people to get in on the fun. You are comfortable with the way your phone works, and you know how to us...