The best place to see Cuba's Internet explosion is along the busy Havana thoroughfare known as La Rampa, or the Ramp.
Named for its sloping descent toward the sea, it is congested and loud. Still, crowds pack the sidewalks, office alcoves and driveways here to get online. They huddle within a few blocks of huge cell towers atop the Habana Libre luxury hotel. All eyes are glued to smartphones, tablets and laptops.
Raul Cuba, 41, types a lengthy Internet access code and password into his phone. He only learned how to log on a month ago.