Valve is preparing an update for Steam, revealing a host of new features over the course of this week for Steam Community. The first feature revealed is Game Hubs, a kind of anchor that will present everything associated with a game on Steam in one convenient place.

Game Hubs will "highlight the most popular user-created screenshots, videos, and Steam Workshop items as rated by the community and combine it with related news, discussions, and comments for the game all in one central location," Valve PR rep Doug Lombardi says.

Each day of this week, a new feature as part of this update will be shown. Beta access for the new Steam Community section will be available "soon."
via Joystiq.

Sounds interesting. I wonder what other changes they'll be making.