Passing a Taxonomy term via URL to add content form in Drupal 7 OK, I have a Drupal 7 site.  And the scenario is that, let's say I'm on a page of my site that happens to have a taxonomy term assigned to it - let's say it's term ABC.  Well in a block in the sidebar I have a link that sends the user to the ADD CONTENT form for a Forum Topic.  The Form Topic content type has a CCK field as well (same vocab).  I'm trying to automatically populate that field with the same term ABC as the page that they came from.

I was thinking this could be passed via URL as a GET parameter, but not sure if that would work and if so how to pull it off exactly.
You can use the module Prepopulate ; latest release is dev but I use it on a production site and it works like a charm.

If it doesn't work tell me, there are two other solutions : send an arg in the URL to the form (and then use Panels or the php template) and JavaScript (I can give you the code if you need it).