I use mega.nz to backup files on my computer. I use the service because it has client-side-encryption and provides 50GB of free storage.
I use Evernote for all information like notes or articles I read that I want to remember.
Anki has it's webserver where automatic updates happen. Gmail also automatically has the data in the cloud.
If it's worth saying, but not worth its own post (even in Discussion), then it goes here.
Notes for future OT posters:
1. Please add the 'open_thread' tag.
2. Check if there is an active Open Thread before posting a new one. (Immediately before; refresh the list-of-threads page before posting.)
3. Open Threads should be posted in Discussion, and not Main.
4. Open Threads should start on Monday, and end on Sunday.