21.   It might also have been used to send drug profits south into Mexico.

22.   Little by little, DoubleClick builds up a profile of the Web surfer, which can be used to send ads specifically tailored to his or her tastes.

23.   Manoharan said many technical obstacles would have to be overcome before the mirage effect could be used to send signals between the components of superminiature computer chips.

24.   New computers are used to send results by e-mail but the files cannot be read by the system used in Jakarta.

25.   Nextel also offers software that can be used to send messages from a desktop computer.

26.   Now, I realize it was really our Viking ship, used to send family members off to Valhalla.

27.   PKI makes digital signatures possible, but it can also be used to send encrypted e-mail.

28.   Richard Popko, an editor at Multimedia World Magazine in San Francisco, said he was amazed that the system could be used to send a short animated program.

29.   Rocket technology for ballistic missiles is similar to that used to send satellites into orbit.

30.   She wanted to know if public money could be used to send kids to private schools or to elite public schools across district or even state lines.