The Pew Internet & American Life Project did a study earlier this year about usage of online video. The total percentage of people surveyed who had ever interacted with a video-sharing site was 48%. But even more intriguing is this:

15% of respondents said they had used a video-sharing site “yesterday” — the day before they were contacted for our survey. A year ago, 8% had visited such a site “yesterday.”

This little tidbit is a measure of recency, how often people come into contact with video online. So about twice as many people are making significant use of online video content than the previous year. Recency is a good thing to watch because it eliminates the individuals who tried it out and then never used it again. Recency shows us what is actually being used.

The report includes a lot of demographic data about video users as well. You can see it at  “Online Video Audience Surges.”