David Szetela is one nutty dude. He decided to experiment with special characters in Google AdWords pay per click ad content. As I read his thoughts on the subject it dawned on me that Google has allowed the copyright symbol all along. Why not allow other special characters, especially ones that look like letter? I was really surprised by the number symbol that looks like the letter No. Cool idea.
The one I like the best, however, is the bullet points. This is a symbol that people recognize and it makes your ad really stand out. I’m thinking that bullets and asterisks ought to go over real well. I’m not sure about the greater than or equal sign. 
But why not numbers? Precede your add with the number 1 or 2 and see what happens. The number may or may not bear any significant meaning to your ad. But if it makes your ad stand out among the cacophony of other advertising voices in the SERPs then it will serve its purpose. That is the whole point, isn’t it?
I’ve seen ads using the tilde like this ~Job Scheduling~
It makes ads really stand out.