Through the use of plugins, Shotwell can publish photos and videos to the following services, each of which requires an account:

To publish selected photos in a collection, choose EditPreferences and click on the Plugins tab to enable the plugin for the service you want to publish to. Next, choose, FilePublish, press the Publish toolbar button or use CtrlP. You will see a dialog that lets you select a publishing service. You will then need to log in or create an account.

Publishing to Facebook requires you to grant certain permissions to the Shotwell Connect Facebook application. You only need to grant these permissions once, when you first associate Shotwell Connect with your Facebook account.

Similarly, publishing to Flickr requires you to log in and permit Shotwell Connect to access your account.

If you have a Google account, but have not yet used Picasa Web Albums, you will need to log in to Picasa using a browser once before you can publish to this service.