I'm just going to take a minute here to point out something I found on the Interwebs this morning. During the writer's strike it seems that Joss Whedon (of Buffy, Angel and Firefly fame) was busy on a personal project. The results are now available. Be sure to check out Dr. Horrible's Sing Along Blog for glorious, musical, Joss Whedon-esque content staring Neil Patrick Harris, Felicia Day and Nathan Fillion. The first act was released today and the others will be released later this week.
Update: I should mention that these videos will only be online until midnight on Sunday. After that they disappear (although you'll be able to purchase a DVD). So watch them soon if you're interested!
Update 2: It appears that the rest of the Internet also enjoys the work of Joss Whedon as the interest appears to have killed his poor server. I looked around for a mirror without success so I guess just keep trying the main site and maybe it will become fixed by magic.
Final Update: Here are some mirrors to try: mirror 1,mirror 2, and mirror 3.