Keeping pages current

Any detail that moves - figures, rules, and product details - is worth confirming at the source before acting on it, since a page can date after it is written.

Sites run by others

This site has no control over the pages it links to. Each one runs under terms of its own.

Uptime and changes

The site is not guaranteed to be available at all times. Pages may be edited, moved, or removed as the operator sees fit.

How to reach us

[email protected] receives questions about these terms.