Z:gnu-www-ja-free-encyclopedia--c46cb0-When information is available/en

When information is available on the web only at one site, its availability is vulnerable. A local problem&mdash;a computer crash, an earthquake or flood, a budget cut, a change in policy of the school administration&mdash;could cut off access for everyone forever. To guard against loss of the encyclopedia's material, we should make sure that every piece of the encyclopedia is available from many sites on the Internet, and that new copies can be put up if some disappear.