Flickcall - Flickcall is a privacy-focused browser extension to watch movies & TV shows together.
ShareTube - Watch YouTube, synced with friends.
Hyperbeam - A better way to watch together online
&chill - Watch YouTube & Twitch videos with people online
Netflix Party - Netflix Party is an extension for watching Netflix remotely with friends and family for movies nights with that long-distance special someone.
Picaboo - Picaboo is a web-based image publishing and printing service that allows you to create personalized photo books, cards, and scrapbooks.