Anyone know if anything is happening with Birthright, updates, new adventures, anyone playing it? And what about the "official fan site" at birthright.net. Sorry if this has already been discussed.
There's almost nothing, really. Birthright.net is one of the very few places keeping the setting alive. I'm sure there are a few other sites out there, as well as WotC's forum for the setting.
Beyond that, the only thing even remotely official was the Birthright article in Dragon #315. However, it was fairly brief, so I don't know how satisfying you'll find it. Dragon is doing a "Campaign Classics" issue every January, so you'll likely see more Birthright material then.