Most people put popup ads and Spam in the same category; they genuinely don't believe in their effectiveness.

However, marketing statistics show that popup ads are powerful marketing tools that can significantly increase your sales and subscribers to your opt-in list or newsletter. On the flip side, popup ads are the third most hated entity on the Internet, behind Spam and adware. This is because most popup ads are the rude interrupting variety that traps the user into an unending loop.

It is possible to produce Popups that provide relevant information to users in a non-intrusive way. You just need to be sure that you are providing relevant information to the visitors to your site (information that they are already actively looking for.

If you are using conventional popup ads on your site, you may have noticed oh, in the last year or so...that your opt in list has been continually declining. You can attribute this decline to the advent of the popup blocker. Just in case you're not familiar with pop-up blockers, here's the short summary