If there is a threat to the hegemony of the YouTube juggernaut, it's most likely to come from one or more of these commercial sites. Eventually, viewers will get tired of watching silly video pranks and seek out more creative video material online. By offering payments to contributors, the commercial sites may start to accumulate exactly the kind of material people will start demanding and thus begin attracting larger online audiences.

Of course, if such a strategy is going to work, ultimately it's people like you who will make it happen.