Sync this shelf to your own Dropbox so it follows you across devices. Your links go into a private app folder in your Dropbox — nothing passes through anyone else's server.
First time? Get a Dropbox app key →
Open the Dropbox App Console and choose Create app.
Pick Scoped access, then App folder, and give it any name.
On the Permissions tab, tick files.content.read and files.content.write, then Submit.
On the Settings tab, copy the App key and paste it below.