When and when not to hyperlink
Proposed guide (comment/edit):
Rules of thumb:
- If I were an educator, reading this paragraph, would it help if this word was hyper-linked?
- perhaps the word is already hyper-linked in the previous sentence, or it is not relevant here.
- In a section relating to "Find", link to search engines, repositories and other resources that have a search facility.
- In a section on licensing, link to actual licenses and to Creative Commons, etc. - but not to (e.g.) major search engines (at least not with a 
<ref> tags exist, but no
<references/> tag was found