Thing that I love #1: Musicals!
Thing that I love #2: Firefly! (And Joss Whedon!)
Thing that I love #3: Free things!
Thing that I love #4: The Interwebs! (Sometimes.)
Question: What happens when these four things collide?
Answer: Dr. Horrible's Sing Along Blog!
Some of you have, I am sure, heard of this, but for those not yet in the know, it's Joss Whedon's new, free, internet streaming miniseries about superheroes and archnemeses starring Neil Patrick Harris and Nathan Fillion! Act I will be put up on July 15 followed by Act II on the 17th and Act III on the 19th. They will then all be up until the 20th at which point they shall vanish, so watch while you can!
Still skeptical? Confused? Intrigued? All of the above?
You can watch the trailer and read Joss's Master Plan (plus, on the 15th, watch the show) at the official website.