Ive noticed that banner ads have evolved over time. From static billboards to flash-based interactive banners to floating ads (those have to be the most annoying) to 10-second commercials and mini movies. Today, I stumbled upon a mini website contained inside a standard 728 x 90 banner ad.
The banner advertises a new type of litter box with three pull downs revealing a demo video, testimonials and an interactive diagram. I was impressed with how much layered information the banner was able to contain and I liked that I could explore the product without being jerked away to another site.
I suppose it wont be long until these mini-site banner ads start sporting banner ads themselves.