Latest Pew Internet Life Study:

Nearly half of Americans online have used the web to get information about the upcoming US presidential election.
That is double the number who used the net during the 2000 campaign according to research group, the Pew Internet and American Life Project.
Americans are increasingly going online for political news and commentary, its report found.
It suggests that the web is playing a positive role in democratic debate on a wide range of issues.

Hardly a surprise. The internet provides vastly deeper and more accessible information than traditional tv, radio and print media types. I’ve posted some candidate information here. Visit Wisconsinvote.org for additional data.