whether a service is primarily a directory (D)
or a search engine (SE).
Shows how many people are involved in producing
the listings. More is not necessarily better,
as some services claim that technology helps
them do more. However, a large number of editors
can be a good sign that a quality directory
is being built and keeping up with the growth
of the web.
Shows how many categories each directory has.
Shows how many unique URLs exist in the directory,
usually as reported by each directory or drawn
on recent interviews I've conducted. In the
case of Yahoo, a range is shown. The upper figure
comes from going into each major category and
adding up the counts for each subcategory listed.
However, since some URLs may appear in more
than one category, this method may produce an
over count. Thus, an estimated lower figure
for Yahoo is also shown.
Of: Shows how current the information
is, for each directory.