Google Drive: Gmail (and some on drive?)
22.77 GB of 102 GB
https://drive.google.com/settings/storage
iCloud: Mac backup? (check this)
17.93 GB of 25 GB
https://www.icloud.com/#settings
Dropbox: iTunes backup
754.52 GB of 1.01 TB
https://www.dropbox.com/account/plan
