A GLOOMY FORECAST
Can social-networking sites continue to make significant inroads into the U.S. online advertising market? The outlook is uncertain. A shaky economy and setbacks in targeted-advertising initiatives have caused leading online marketing research firm eMarketer to project more modest revenue growth for social-networking sites over the next four years than it had previously predicted.
THE GLOBAL VIEW
Social networking is a global phenomenon, and reaching users outside the United States will become increasingly important as advertising dollars flow to Western Europe, Asia, and beyond.