What I'd like to do is get rid of the calendar and put a little bit of advertising into the menu. But what type of advertising (AdSense, small buttons to affiliate merchants, etc.) depends on what kind of page it is - what is to the right of index.php in the URL.
- Main page (... index.php)
- Archive (... index.php?m=200405)
- Permanent link to any specific topic (... index.php?p=1)
- Category postings (... index.php?cat=1)