So almost 3 months ago I posted a few videos I took from the Wired NextFest in New York City. In that time, it received somewhere around 75 views, over the entire duration.
Randomly I looked at my Google Video stats and noticed that in the last few days, almost 73,000 people have watched the Infrared X-ray video I posted from Wired! I didn't really believe it, but then checking on the page shows that there's not only views, but over 50 ratings and 10 comments, discussing the legitimacy of the video, potential harms of the machine, etc.
I took a look over at Technorati to see how was linking to the video, and 18 sites now have links to it. It looks like first someone at Spoozer Magazine picked it up, and then someone at Ubergizmo posted on it, which has over 1,100 blogs repeatedly linking to it and therefore suggests strong readership.
All in all, I'm surprised and impressed at how quickly a viral video can spread in two days, from 75 to 73,000 people.