I'm glad I found this thread. I've been here less than ten minutes and I have gotten 9 tribalfusion popups. I sometimes get dozens when I go to different categories. I use several popup blockers and the best I can do is contain them in a group at the bottom of my screen, later I just click them closed as a group. If I add my firewall blocker, I stop them but I also makes it impossible to use my blog, which needs popups to post. The problem is tribalfusion is insiduous and notorious for finding ways to bypass popup blockers, and when they try to popup that actually pump up RAM usage. Each time a tribalfusion popup tries to hit my laptop, my fans start working overtime because their popups increase system usage. Tribalfusion is a horrendous system pusher.
This is one of only two sites I have the problem with and I figure that it's a way to keep the site financed unless we all want to write a check, also known as "the check's in the mail". But the tribalfusion ads are really an inconvenience. People really hate them and fastclick as they are very pushy and get in the way of trying to post. If you do a google on "tribalfusion" and popup, you will see pages upon pages of desperate people trying to get rid of them as fastclick, because of their ability to eventually bypass popup controls. They've even managed to infiltrate Firefox browswer, which means they work double time at it. As a matter of fact, I just went to "advanced mode" to view this post before I send it, and I got my 10th tribalfusion attempt.