by the numbers

58

Percent of the 100 biggest U.S. companies that say they share data entered by users of their corporate Web sites without explicit permission to do so. Thirty-five percent give that information to affiliates or subsidiaries, while 23 percent share data with their business partners.

2

Approximate number of dollars, in millions, generated each month from the Web site for the best-selling “South Beach Diet” book series. Subscribers receive e-mailed recipes, meal plans and words of encouragement.

30

The number of people, in millions, who have seen graphic war images online, and 28 percent of those people actively sought them out. That comes out to more than 8 million active seekers, according to a Pew Internet and American Life Project study released last week.