Not that there's anything wrong with that...
The issue with merged projects that is addressed by Peter's
method is "external" links (cross links between projects). The
beauty is in having nothing in the master project but a redirect to
a child project that actually holds the root level "home page" and
any other topics at that level. That way, all "external" links use
the path "../otherfolder/externaltopic.htm."
This relative link will be done automatically, but not at
first. As long as you have all the child projects under the
\projects folder, your links will at first appear as absolute links
(C:\blah_blah). After you close the dialog, then double click the
link again, you'll find that RH has assigned a relative path.
Good luck,
Leon