Comparisons and advocacy

You can do that with contents (internal or external), just creating a "resource" being a web page. There you can put links to other resources. This reduces de number of links in the main course page. It is very similar to what you need, but you will not be able to link activities that are not in the main page of the course.

Anyway, the "natural" way to create organizer pages in Moodle is just to put links in the sections of the course (being weeks or topics). Each section is something like a organizer page, but all them are in the main page of the course. This allows you to use course activities and resources (contents).

Hope this helps. We sometimes use WebCT to develop online courses, but our main e-learning tool is Moodle. I think that, in general, is much more powerful and simple.