In the Times coverage of Myspace Impact Pages for political candidates, I was struck by the following paragraph:

Some observers believe that such efforts by MySpace and other social networking sites might make them influential among voters in 2008. Or, in tech language, such sites aspire to be the killer aps of this election cycle, reminiscent of what talk radio (particularly Rush Limbaugh) was in 1994, when it whipped up enthusiasm for the Republican landslide in the midterm elections, or what MoveOn.org was in 2004 when it emerged as a potent force to raise funds and drum up volunteers for the Democratic Party.

In essence, we're searching for the holy grail of social media.