The Wake OS X App lets you share screenshots or share artboards directly from Sketch, Photoshop, and Illustrator with a simple keyboard shortcut. Other features include:
• Upload a Set by dragging a folder onto the Wake icon
• Add a description, #tags and @mentions to your posts before you share them
• Share images from anywhere on the web
• Desktop Notifications!!
• Upload from anywhere on your desktop by right clicking on a file