After browsing through the list of Web 2.0 Awards, I must say, it's a bit overwhelming for the Internet user to find what's useful and I can only imagine how overwhelming it must be for a site host to capture their niche market.
I took a good look at BuzzDash. According to their site, "BuzzDash is a site and tool for gauging popular opinion on a wide range of topics - from sports, movies and politics to relationships and philosophy." It looks like TIME magazine even solicits their help. But, from a researcher's point of view, I'm not encouraged by the responses. Many of these polls have very few responses, making the results less than reliable.
Perhaps these are the up-and-coming 2.0 sites. When I looked at views of videos on various winners' sites, even the greatest numbers seemed low.