RxnStream allows users to share videos and watch their friends reactions.RxnStream lets you share videos with your friends and watch their reactions. How it works: 1) Enter URL of a video from any major site (ex: YouTube, Hulu, College Humor, etc.) and hit submit. 2) Send your friends the 'Share URL' or post it on Twitter 3) Friends who click the URL will be connected to you to video chat whil