Still another important factor will be how well such services can attract and serve advertising.

These services attract people to Google's site, where they may also conduct searches, he said in an interview.

Such services attract insurers because they cost less than hospitalization.

The service never attracted enough subscribers to break even, and ended on January 31, 1969.

In time, the out-call service had attracted more than customers.

"But their service attracts an element that doesn't deserve to be there."

The service has attracted 1.8 million registered users; 4,000 more sign up every day.

So far, the service has attracted more than 400 subscribers in 32 countries.

That service has attracted 70 million to 80 million users.

After all, the service has attracted more than 13 million customers, a number that keeps growing.