UPDATE: RadioLeMans.com is also streaming live video with English commentary. It's got a bigger video window, and you have on-track audio, so you can hear the cars' engines on the circuit. The commentators are also funny, as the Lexus LF-A had pitted and was having its rearview mirror adjusted while other work was done on the car. Next thing you know, it's being pushed into the pit garage. One of the announcers deadpans, "They're obviously having a lot of problems with the mirror there." RadioLemans.com wins.
UPDATE 2: Live standings (all classes) can be seen here (there's a slight delay, but it's useful). For a kick, keep an eye open for the #114 car. It's an Opel Manta with a fox tail hanging off the roof antenna. Great stuff. As LS2/LS7 points out in the comments, the Nürburgring 24h is not a "big" race compared to others, but it's definitely fun to look in on.
UPDATE 3: The race is over (podium ceremony taking place as I type at 9:25 AM Eastern). The Manthey Racing Porsche 911 GT3 RSR driven by the veritable all-star team of Timo Bernhard, Romain Dumas, Marc Lieb, and Marcel Tiemann is the overall winner. Full results can be found here. Commenter "Philthy" also reports that tragically, the #114 Opel Manta lost its foxtail somewhere along the way. The Manta, in case you're curious, finished 46th overall and 4th in the SP3 class.
[Source: ADAC Zurich Nürburgring 24h]