Pop-Up Ads & Rotating Ads & Pop-Under Ads

Let me ad (heh, had to say that. sometimes typos are so fun) something here. Most of my design work these days is for a K12 site, and we just can't trust any site with advertising. It's so hard to know when a change in a site's user policy will make them decide to accept an advertisement for a product that some parent or principal or community member considers inappropriate.

So, snobby though this will sound, I just don't link to anything that has advertising anymore. That does limit my choices, but it eliminates embarassment later. Besides, what kind of ethos does a site with intrusive ads have anyway?