CleanPrint - Eco-friendly content output to print, PDF, email, Kindle, Box, Google Drive and Dropbox
CleanSave - Save web page content to your Kindle, Box, Google Drive, Dropbox, Google Cloud Print, print, PDF, text and email
Please use https://wordpress.org/plugins/storagemadeeasy-multicloud-files-backup/. This plugin is deprecated and no longer maintained.
The StorageMadeEasy Multi-Cloud File Download plug-in enables you to share files for download, via a widget, for over 30 cloud storage providers.
Back your WordPress blog up to any one of 40 storage clouds including S3, RackSpace Cloud Files, SkyDrive, DropBox, Gmail, Box.net, RackSpace Cloud Fi
Podcasting made simple. Just upload mp3's to box.net and you are done.