Dropbox is one of a handful of pivotal services that make the Internet indispensible for business owners, sort of like the way that cat videos made YouTube an essential Web site for your mom.

FileStork is a convenient way to receive files from students and colleagues directly into Dropbox. Here’s how it works.

Dropbox has painted a giant target on its back by offering one simple, additional feature to its file-storage service: a link-generating button to enable public file-sharing.

Dropbox's new drag-and-drop feature for the web app makes it easier to use Dropbox as a bookmarks repository.

Well, now we have one. FileStork is a Dropbox add-on that lets you request files from co-workers, who can use the service's Web interface to upload files directly to your Dropbox account.

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