The spam pop-ups literally froze the computer, but they kept running a loop amongst themselves. Couldn't get back to Google, couldn't get to my task-bar screen, couldn't even Control-Alt-Delete to shut down those VanDam things. I had to turn off the computer and run scan-disk just to get back to the internet. I'm willing to bet money, though, that I now have "INCEST!! Click here for more!" websites stored on my hard drive, along with the accompanying pictures from that ad page. Help!
P.S. Irony of it all...the software program I was looking for info about when I clicked on that link was firewall program Zone Alarm! Have now downloaded ZA from their website and have it running in conjunction with WindowsXP's firewall.