I used to be heavily involved in the videoblogging movement back when video on the Web was just starting out in late 2004. I was one of the first 50 members of the Yahoo Videoblogging Group (now about 3,000 members) and launched Ourmedia, the first free video hosting and sharing site, in March 2005.
Video creation and sharing went mainstream in 2006, so much so that Mashable reports YouTube Is the Top Social Media Innovation of the Decade.