I happened to see some sample pages (124 pages available out of 2,680 pages) of a book (Kindle Price: $116.15, if you buy one.), and found lots of phrases like “for the full continuation of this topic, please visit the web site at …”
This could be a nice idea to keep the book current even after its publication, but some people do not like this style, I presume.
The style can be applicable to our QSOs, for example, we can say “MY ANT IS DIPOLE ES VISIT WWW.something.COM FER THE FULL CONTINUATION OF THE TOPIC …”
But, we are actually so advanced that even this mentioning is unnecessary. We often check QRZ.COM before starting a QSO to see what kind of a person is at the far end of the link.