While Mr. Bowie's financial contribution has been kept in confidence by museum officials, traffic on the Bowie Web site has more than tripled.

But Mr. Pincus said that traffic on Tribe had tripled over the last 12 months, and said he expected it to triple again over the coming year.

NetRatings said that traffic to newspaper blogs had more than tripled over the last year, reaching 3.8 million in December.

The Washington Post's Web site reported that its traffic had tripled by late afternoon.

The office used to serve only Yonkers, but its jurisdiction was changed a few years ago to serve Mount Vernon and the north Bronx, and traffic has tripled.

Their traffic more than tripled from 11 million passengers in 1978 to 38 million in 1989.

In an interview with the Financial Times, Watts reported that his blog had become "busier than ever" after the incident and that traffic to the site had tripled.

Its traffic nearly tripled, to 487,000 visitors in November from 173,000 in October, according to Media Metrix, which tracks traffic on the Internet.

The annual traffic at the tunnel has tripled in 20 years, hitting 8.5 million vehicles this year.

For example, Newark International Airport's international traffic has more than tripled since the mid-1980's, to 3.4 million passengers last year.