I recently got a Box account with 50 gB of online storage (see this thread on XDA on how to get one).
At work we regularly have to send over files to $vendor. $Vendor has two ways of accepting files: FTP, and Webdav (over https). Since our company’s policy is to not send things out unencrypted, we have to go the webdav way. It’s also the policy to send things over our internetproxy if possible.