Togetherly - Watch Youtube with friends
ShareTube - Watch YouTube, synced with friends.
Juicebox - Spectacular HTML5 Image Galleries Made Easy
Showgoers - Showgoers is a website dedicated to watching Netflix movies together with friends or loved ones who are not sitting on the same PC.
fflip - Discover new videos
Telegram - Telegram is a messaging app with a focus on speed and security. It’s superfast, simple and free.