Sean Alexander reports that the Online Media components of Vista's Media Center should be enabled now for those of you in the US (it doesn't seem to be working in Canada yet).
Next time you start up Media Center, the Online Media strip should automatically refresh with the new content (it may take a few minutes). Additional partners will be filtering in shortly.
This follows the launch of the Media Center SportsLounge portal during CES. Windows Media Center SportsLounge, a partnership between Microsoft and FOXSports.com, aims to change the way you watch and interact with the world of televised sports within the Media Center interface within the United States and Canada markets. For more information about the SportsLounge features, see the Media Center SportsLounge site.
Update - Jan 17, 2007: Online Media is working on my computer now (I'm in Canada)
Microsoft, Vista, technology, Media Center, Online Media, SportsLounge