I'm using Google Drive. So far I'm quite happy with it. You get a lot of free on-line storage. (I'm using about 2% of my free space and could buy more if needed.) There's free software you can download to make it even easier to upload and keep track of your files in "the cloud" whatever that is. I didn't use Youtube, Instagram or any other like that because I wasn't looking to share this files with the world, just relatives, friends and others that I would give links to.