Maybe it's sincere. Maybe it's a well produced troll. Either way, I think the top YouTube comment sums it up perfectly: "It's like Christian Rock, but with Facebook in the place of God."
In honor of Facebook's IPO — which is doing really well, by the way — a group of Facebook fans decided to band together for a music video celebrating a social networking site. (It's worth noting that Mark Zuckerberg doesn't merit a mention.)
So log on to your dial-up internet and see if you can endure the entire four-plus minutes. Be warned — the incessant "Facebook, I want to thank you" refrain will get under your skin like necrotizing fasciitis. Anyway, enjoy.