I've been asked how to put those hyperlinks in a posting.
You have to understand that what you put in that little text box is sent to a web browser which is an html code interpreter. You have to write the link in html code.
HTML code consist of instructions, or tags, imbedden in brackets, <tag>
<a... > opens the "anchor" to the link. </a> closes it.
The format of a link is <a href="URL">link name</a>
"href=" means hyperlink reference
URL must start with "http://" or the browser will look for the link on the current website.
The link should include the statement target="_blank" for the link to open on a separate page.
So, for a link to the website in Bacharach, we would write
<a href="http://www.bacharach.de" target="_blank">Bacharach</a>
Bacharach.