This works until the filter is one who wants to maximize profits by minimizing risk. You see this in every field where there are filters:<p>1&#62; Music
2&#62; Movies
3&#62; Publishing industry
4&#62; Venture Capital
5&#62; Newspapers
...<p>But I think there is a glimmer of hope on the internet. There are millions of blogs but the best still surface and build a large audience. There are infinite number of videos on youtube but still the best still gets 100 million views. The common element here is social media. As twitter and facebook gain popularity, general public will decide winners and not a media executive.