Have you heard of AIDA? Its an abbreviation of:
A: Grab the Attention of your customer
I: Create Interest of the product/service you are trying to sell
D: Instill Desire to own the product/service
A: Provoke them to take Action immediately
If you are already familiar and thought it makes sense only to offline medium, its time to re-consider. Techniques of AIDA works wonders in online marketing as well. It’s a typical sales process of a purchasing cycle.
 Use AIDA effectively in your PPC Ads
- by crafting an intelligent ad copy with catchy title 
to grab attention. You can also use provocative questions in the ad title .
- give offers/discounts to create interest to click on the ad.
- Use your landing page well to instill desire to buy backed with money-back guarantee, customer praise, reviews from other website, and use excellant visuals & text.
- Finally, make it easy to buy the product, get their email address for follow ups, remove constraints in filling the form and provide alternate ways to make the payment.
Once you follow the methods above, you will be on your way smiling to the bank 
I’m looking foward to getting started this AIDA. I Use AIDA effectively in my PPC Ads.
Thanks in advance!