21.   Another button pops up data about weather ahead.

22.   And years of increasing data about audience preferences offer tempting solutions.

23.   Angara E-Commerce Services, a software vendor, is using many of the techniques of the ad networks to gather data about Web users.

24.   As the attachment travels from computer to computer across the Net, some file data about the encoded attachment can accidentally be stripped or changed.

25.   At the CIA, data about China, Russia and other closed societies is gleaned from debriefing returning travelers.

26.   Authorities said on Thursday that their forensic work at the bomb site had yielded more data about the probable construction of the device.

27.   Because each of the originally separate services posted a slightly different privacy policy, they cannot share data about users with other parts of the network.

28.   Because the systems allowed you to share files, you could find that so-and-so was interested in such-and-such and he had some data about it.

29.   Because of rapid methods for sequencing, or reading off, the chemical letters of DNA, geneticists are gathering reams of data about human populations.

30.   Barthold explained that scientists are swamped with data about the sequence, or chemical letters, that spell out genes.