Wikipedia is a very useful resource, but it is far from perfect. In other words, we need to avoid duplicating their excellent work as much as we need to avoid making the same mistakes.
SJWiki's policy for linking to Wikipedia is, therefore, two-fold:
- Do not link to Wikipedia if another more direct, clear, concise, or lesser-known but equally good resource is available.
- Do link to Wikipedia if no other article is available and/or the article makes the same point one would have made here.
Ask for advice in the forum, if you are unsure.