Each post/article in the portal is tagged using one or more vocabulary terms defined in my modeling taxonomy. Clicking on the term will retrieve a view page listing all drupal nodes (i.e. posts+articles) tagged with the same term.
Until now, clicking on the term redirected the user to an error page but now I've managed to fix the problem (at least temporarily, it seems it is not clear yet what makes Drupal to generate wrong aliases for the terminology terms).
Hope you enjoy a new way of browsing the site

(this information is now part of the How I Created this modeling portal with Drupal page)

I recently had to create a page only accessible for: Registered Users AND users with an id matching one of the values in a Table X (e.g. to make sure that users have signed up for a specific service before letting them access it). Here is how I did it.

For the first part, there are several Drupal modules (e.g. this one ) that can be used for this purpose.

I've decided to include in the blog some posts about the process of creating the portal and the services that I'll offer in it. Hopefully, some of you will find this information useful (e.g. if you are thinking in creating also your own portal or web site). To begin with I've written down some of the notes I took during the installation of Drupal (the CMS - content management system - used as base platform) and the setup of the portal.

Tagging the content: taxonomies

---

This is for us one of the most wondeful aspects of Drupal. It is very easy to create a taxonomy (activate the taxonomy module!) of vocabulary terms that can be used to tag the pages and stories in your drupal site. Then, you can use views (see below) to automatically organize the content based on these tags.

The current taxonomy of this site is the following: