+* `connected` - Controls whether to include pages on the map that link to
+ no other pages (connected=no, the default), or to only show pages that
+ link to others (connected=yes).
+
+For best results, only a small set of pages should be mapped, since
+otherwise the map can become very large, unwieldy, and complicated.
+If too many pages are included, the map may get so large that graphviz
+cannot render it. Using the `connected` parameter is a good way to prune
+out pages that clutter the map.