You could also have your ad contain a regular captcha image. The area around your captcha will be getting eyeballs, it's not a bad idea to use that space to pa

You could also have your ad contain a regular captcha image. The area around your captcha will be getting eyeballs, it's not a bad idea to use that space to pass a message to your users. Ad blindness is always an issue but that's why changing the way you present your promotional content, every now and then, is a good idea.