I've always wished that transferring files would be as easy as using Imageshack or Pastebin. There are many times when email just doesn't work; between content filters and email attachment size limits, attachments often don't get through. Instant messaging is hit and miss. After falling in love with Dropbox, I decided that integration with Drupal would solve most of my problems. A weekend of coding later, and poof!
This module allows each user on a Drupal website to have a "Send file" form for recieving files. Each user has control over permissions for receiving files, while site administrators can enact global policies if needed. Extra care is taken to ensure that a user's private Host ID (used to connect to Dropbox) is never transmitted insecurely. Eventually, I'd like to see this module turn into a full interface for Dropbox files, either through embedded media field or other similar projects.
Special thanks goes to Jaka Jančar for initially writing a PHP interface to Dropbox, and agreeing to license it under the MIT license so it could be used with the Drupal module.
Read on to see the screencast demonstrating the module and how to set it up for a single-user website so clients and colleagues can easily send you files.