A couple of updates to the official StarCraft 2 site today:
1) New movies have been added to the movies section.
These show the Blizzard event in Korea. A low quality version of the event has already been available on Youtube. These are higher quality videos of the presentation:

• Introduction by Mike Morhaime, president and cofounder of Blizzard Entertainment
• Blizzard Retrospective, a look at Blizzard’s history
• Cinematic Trailer Introduction by Mike Morhaime
• Gameplay Demonstration narrated by StarCraft II lead designer Dustin Browder
• Artwork Trailer Introduction by Dustin Browder

The Blizzard Retrospective is the only video that actually benefits from a higher quality version, since it features games and not just talking heads. Give it a go.
2) Previously revealed Protoss units have received updates.
Their pages now contain in game audio responses. Check out the updated pages for the Zealot, Immortal, Stalker, Phoenix, and Colossus.


From the Starcraft 2 Blog.