Google takes us backstage with The Story of Send, which explains what happens when you send an email. It's kind of like they're asking themselves why they're so awesome, and then answering that question, but it's still a clever way of both congratulating their renewable-energy efforts and explaining the inner workings of something people do every day without necessarily understanding the mechanics of it. I also think they're getting sick of all the remaining jokes about tubes, so they're trying to nip that mess in the bud once and for all. Either way, it's evidence of good citizenship from the Google compound.