Almost a week ago I posted an entry about two Google Adwords ads where the only difference between them was a single comma. This resulted in a CTR (Click Through Ratio) of 4.1% versus 4.4% and saved the advertiser $500 a year!

What I didn’t do though was tell you which ad performed better because I wanted to show you that it’s sometimes very hard to tell which ad will perform better. In this particular case, it was the second ad with the extra comma that outperformed the other ad.

Ad 2:

How to Write a Book, Fast
14 Days from Start to Finish
Unique, Step By Step Program
Write-A-Book-Faster.com

A small difference can sometimes have a significant impact!