WordPress Cloud Manager | Dropbox - Google Drive - S3 Folder Sharing

Features:

Access your cloud drives like dropbox, google drive and s3 directly from your WordPress dashboard and share the folders to your users in the front-end.
You can allow your users to upload files, set file size restrictions, file type restrictions and allow different users to have different permissions to the folder.
Cloud manager lets your users edit files and image, view documents, images, video and audio files, it comes with a built in text editor, image editor and office document viewer.
Cloud manager also allow you to get notified via email when a user uploads a file to their folder.