1.   And a third lets Internet users search this vast database.

2.   And those vast databases are notoriously mistake-prone, difficult to secure, open to abuse, and expensive to compile and operate.

3.   Computers simplify record keeping, and they can be used to search through vast databases quickly and efficiently.

4.   Consumer advocates warn that the confidentiality of medical records should be a growing concern as the computer era spawns vast databases with varying levels of security.

5.   Everything from the vast databases of insurance companies, to each cash register at every supermarket, convenience store and gas station could need updating.

6.   FAST is also betting that it will attract major companies and government agencies, which use search engine technologies to index their own vast internal databases.

7.   Hospitals, insurance companies, banks and department stores might also appreciate storage that compact for their vast databases.

8.   It offers a vast database of virus information, including a frequently updated list of the top viruses.

9.   Most of the anxiety is anticipatory, about what use might be made of vast databases being assembled online or the identifying numbers in software or microchips.

10.   Michael Keller, vice president for marketing at Real Select, which operates the Realtor.com site, says it has a vast database and takes a direct approach.