Just sneaking this one in: the teaser trailer for Doctor Horrible's Sing-Along Blog. And if you are thinking Bzuh?! (which is admittedly very likely), here's an explanation:

During the WGA strike ['Buffy' and 'Firefly' creator] Joss Whedon started writing a three part musical series for the internet. Each of the three episodes will be approximately ten minutes each. (..) “It’s the story of a low-rent super-villain, the hero who keeps beating him up, and the cute girl from the laundromat he’s too shy to talk to.” says Whedon. “Doctor Horrible’s Sing-Along Blog” will star Neil Patrick Harris as Dr. Horrible, Nathan Fillion as Captain Hammer, Felicia Day as Penny and a cast of dozens.”

General awesomeness, in other words.