YouTube annotations have been both good and bad.
They help direct viewers to watch other videos, start viewing playlists, subscribe to a channel, donate to fundraising campaigns, visit an external website, and more.
But they also are poorly designed, extremely intrusive, and don't work on mobile devices.
Enter YouTube cards, the newest feature to YouTube. Think of YouTube cards as the better looking, younger sibling to annotations.
In this video I'll show you how to start using YouTube cards, what you can use them for, how to set up an external website on your channel to link to, and my 301 re-direct hack for linking to any possible URL from YouTube.