I won't post any Youtube links (they'll get deleted by the time you read this), but last night's Digital Short, Mother Lover, is destined to be the next big viral video.
It's a sequel to Dick in a Box with Justin Timberlake, and in terms of the song, it's actually funnier then DIAB. The beat's perfect, and the lyrics are three and a half minutes of hilarity.
Find the videos now (Google "Youtube Motherlover SNL") and get in on it early.
I watched it five times last night before bed (thank you PVR).
In addition the "Plastic-Ville" sketch was great too, and featured a bunch of great song parody's. The Lady Gaga one's in particular were hilarious. Again, you can find the video, but I'm not posting links since they'll be obsolete in minutes.