Here are a few ad copy strategies to help make your PPC ads more relevant and generate a higher click-thru rate (CTR).

Hanging Ad Technique
Some marketers tell you that your first line should be a benefit and the second line should be a feature, but this is not necessarily true. By creating a “hanging ad” where the first line rolls into the second line (such as the ad below) gives you a better shot at having your prospect read your entire ad.
Specific Number Technique
I have tested that writing numbers in your ads can increase the click-thru rate. For example, instead of using the word “thousands,” you could use “1000’s.” I have also noticed that precise numbers also add more credibility to ads such as “12,454” rather than “12,000.”
Authority Site Technique
Some crafty advertisers have registered domain names that appear to look like reputable domain names. Advertisers realize the value of having a good display URL and will try to register domain names that look like an authority site.
For example, the domain name “www.www-doctor.com” looks almost the same as doctor.com in the display URL if the advertiser drops the “www.” prefix.

If you look at the two ads below, they look remarkably similar. The only difference being that the second ad is from an advertiser who doesn’t own the real www.doctor.com, but rather the www.www-doctor.com domain name.
Capitalization Technique
Another technique that I have seen other advertisers do to improve their click-thru rates is to capitalize each word in the display URL.
For example, for the domain www.medicaldoctor.com, you could get better results if you use www.MedicalDoctor.com in the display URL instead.

You should also test dropping the “www.” completely so you only have MedicalDoctor.com in the display URL.

You need to test these different variations to see which one has the best impact on your CTR.