I have a bit of an issue, and this may be a bit of a confusing description, and im sorry. My site uses page.tpl.php for every page, for displaying navigation, the footer, etc, and uses panels for specific content within page.tpl.php. Also my site is using Google Ad Manager module to link with DFP so we can add advertising to our site. Unfortunately, the google ad manager module doesn't display ads unless one is defined in Panels, and some of my ad slots are defined outside panels, such as page.tpl.php. As a work around, I developed some regions in my theme and then just added the google ad blocks to those regions. Fine.

I have also created a way to target ad positions in panels, based on the taxonomy passed into panels. The bad part is that, the ad targeting doesn't effect the ads positioned outside of panels, in the regions that I had made. So my question is, is there a way at the page.tpl.php level to define taxonomy, so that I can target every ad on the page?