From the Sitepoint newsletter, they featured a new free user interface mockup design test online. The free online service is called; fivesecondtest. It’s a user community generated test to get feedback from millions of online users on your mockup designs.
This might not be a full fledged usability test with cameras or mouse gesture tracking, but it’s good enough to learn about the effectiveness in your design mockup.
Imagine, first time users attention was suppose to be drawn to the product positioned on the left. However, many users gave feedback what they saw first was the registration and price positioned on the right. This is proof enough to rethink the layout and optimize it better.
However, through my observation and personal use giving feedback on random mockups, you can’t use this service too often. I’ll do a followup article on the reason and things I’d like to see added later. ;)