Sharing media has come along way since slide projectors that had to be setup and transported. Today media sharing is free and easy and can be done online. The most popular video sharing site is YouTube. You’ve probably watched funny videos of cats on this website before. Individuals, businesses and other organizations use YouTube to share information through videos. Flickr is the most popular photo-sharing site, and you don’t have to be a professional photographer to take advantage of the amazing service it offers.