Martin Kelley at O'Reilly Broadcast – Will Facebook (all but) replace corporate websites?:

"With the rise of the real-time update streams being popularized by Facebook, Twitter and FriendFeed, users are becoming accustomed to a constantly-changing flow of pictures, videos and new snippets. Even actively-maintained websites seem locked in languid stupor in comparison.

[…] This will change company's interactions with customers, who will start to expect and then demand real-time interaction. This can take many forms--status updates, calendars, videos--but the emphasis will be on immediacy. The style will shift from slickly-produced mass marketing to a one-on-one responsive back and forth."