Barack Obama was particularly noted for his use of the Internet to rally supporters and make his policies known.
"The integration of technology into the process of field organizing … is the success of the Obama campaign," says Sanford Dickert, who worked as John Kerry’s chief technology officer for the 2004 campaign. "But the use of technology was not the end-all and be-all in this cycle. Technology has been a partner, an enabler for the Obama campaign, bringing the efficiencies of the internet into the real-world problems of organizing people in a distributed, trusted fashion."
Obama’s use of the Internet targeted 18- to 29-year-olds, the age group most reliant on new media for political information about the election. Numbers have shown that presidential candidates have increased their presence and activity online. Obama’s campaign managers understood that the reason younger voters tended to ignore politicians was because politicians tended to ignore issues which most concerned them, which is why Obama received such a positive reaction from America’s youth. source: wikipedia