The latest update from Dropbox now lets you upload the screenshots you take from your Mac or PC straight to your Dropbox account for backup and instant sharing. It works like the automatic camera upload feature for your mobile devices and provides you with an instant copy of the link so you can share the screen capture immediately. The feature can also be turned on and off at your discretion.
This Dropbox update also makes it easier for OS X users to add their iPhoto library to the cloud with just one click.