This year marks the fifth presidential cycle that the internet has played a role in the campaign. In 1996, Bob Dole flubbed the name of his web site during a presidential debate. A side-drama in 2000 concerned whether Al Gore took the lead in inventing the internet. Think of 2004 as the year of the blogger. And in 2008, Barack Obama used social media to revolutionize the race for the presidency. What will this campaign cycle bring?