I once made a banner ad and found it ridiculous how small I had to fit the whole idea in. What kind of "genius" came up with this? Not so much space to express something. π
Anyway, my procrastinative side started searching more about the history and I bumped into
the first banner ad from 1994.

A little rectangle was purchased by AT&T on HotWired.com in 1994. About 44% of the people who saw it clicked on it.
Do you use banner ads?
PolyPlan