When I initially go to any of my subdomains, the posts appear in a list that can be scrolled. In that "list" mode, none of my sidebar ads show up. Only when I click on a particular post, where it appears as a single post only, do my sidebar ads finally show up.
Is this typical behavior for a WP blog? And can I change it to where the sidebar ads show up regardless of whether I'm in the "list" mode or "single" mode?
Here's a link to one of my subdomains, so you can see the behavior: