Section one
Use of the site
You may read, print, and share the content for personal, non-commercial use. You may not republish substantial parts of the content as your own, resell it, or present it as professional advice.
Quoting a short passage with a link back to the original page is acceptable, and we welcome it when it helps a reader find the full context. What we ask is that the quote stays short enough to send people to the page rather than replace it, and that the link points at the page you took it from.
Access to the site is free. Nothing on these pages is sold, licensed, or offered as a paid service, and no account is required to read them.