Another advantage to popunders is that the message gets a chance to fully load, whereas with pop ups, most people hit the X before the message is even close to loading.
Now I will admit, I am not the biggest fan of popunders, and they should certainly not be your sole advertising method, but I do believe they can be somewhat effective if used correctly.
Here are some guidelines you should follow when using your popunders:
1) Make sure the message is short, sweet, and to-the-point. Get their attention fast and GET THE CLICK. People are not going to sit and read a 4-paragraph message.
2) Keep it simple. Stay away from flashing banners, scrolling text, and anything else cheesy. Your message is the most important part so make sure the reader gets a chance to focus on that.
3) Target! Target! Target! I cannot stress how important it is to make sure the message fits your web site's audience. You don't have a second to lose so don't waste your time trying to advertise something that is unrelated to your audience.
If they came to your site to learn about web hosting, make the popunder ad relate to this topic. Promote a specific benefit for web hosting. Don't just put up any random ad. Your chances of getting the click will be slim to none.
Free Popunder Code
Below you'll find the HTML code for a resizable popunder window. Simply copy and paste the code inside the of your web page and be sure to add the URL to your popunder page where specified.
There are instructions inside the script to help you configure it to your needs.