People ages 18 to 25 still make up the biggest subdemographic of users, at 35%. Facebook first started offering the service to college students at select schools, and then expanded gradually until it was open to everyone.
"In recent months, marketers have started to explore more opportunities to engage new audiences via Facebook beyond its traditional base of teens and college students, though the site still offers a lot of value in terms of that audience," said Art Sindlinger, vice president and social activation director at Starcom USA. But really the fastest growth has been international -- 70% of Facebook users are outside the U.S.
Read the full article here.-Adrianne (@msfener)