Lots of marketers are surely hard at work on celebratory responses to today's Supreme Court decision guaranteeing a nationwide right to same-sex marriage. But YouTube, long a supporter of gay rights, moved the quickest this morning with a new #ProudToLove spot that's perfect for this historic day.

The video site has the added cred of being an actual vehicle for messages of tolerance, personal confession and love. Which is why the first part of this video includes clips played through the familiar YouTube interface, reminding us that gay people have often turned to YouTube to broadcast their struggles for acceptance—and their moments of transcendence when it happens.

The spot, directed by Scott Chan of Whirled, nicely mixes the personal and the political, the public and the private. And the result, while not groundbreaking, is a great emotional tribute on a day that is—one that looks to both the past and future at a moment when the country changed forever.