Unlike a regular cloud storage provider, Dropbox has some useful collaboration tools. Here's how to share a Dropbox file or folder.

Dropbox Transfer encrypts the files you share to protect them from unwanted access.

Some files are simply too big for an e-mail, but with specialized online services like Gmail and Dropbox sharing still works.

Dropbox Facebook users can now share their Dropbox-stored files from inside their Facebook groups, the cloud storage service announced today.