Social proof has been cited as one of the best ways to build trust & reduce anxiety on a website. Did it convince 24.79% more small business owners to opt-in for an email newsletter — or not?

BTW: the page design of this A/B test is so well done that we think you may want to bookmark it for inspiration the next time you have to create an opt-in offer page:

Another fascinating fact is 84% of the people who guessed which test won guessed wrong! Test, test, test. Little things can make a huge difference, the difference between profits and losses.