You know those annoying popup windows that ask you to join a newsletter when you visit a site? Have you ever thought about why everyone has them, even though they are so annoying? The answer is simple, they work and they are amazingly effective!

Conversion VooDoo, one of the top split testing companies around, recently posted the results from their 500,000+ impression case study on The results are quite awesome and informing. Many different text changes and designs were made to come up with the best design. A few of the results are shown below.

  • A 31% increase in signups just off the title changes
  • An increase of 36% in signups when inline text is added to entry forms
  • Removal of additional RSS increases conversions by 28%

Sure, you can’t learn much from the figures and notes above, which means you need to head over to the Conversion VooDoo web site to see the full visual images and changes made. It’s quite an amazing report, so be sure to check it out and make the changes on your web site, and document the increase in your signups!

Zac Johnson is a online marketer with 15 years of experience and also a blogger at and, as well as the author of Blogging Tips: Confessions of a Six Figure Blogger on

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