After several months in private beta, OneExtraLap, a social quizzing site created by 15-year-old Stephen Ou is finally launching to the public. The site just ran a 2-day public preview for those who requested an invite before August 6th. In such a short time, the service has already received lots of attention and positive feedback.

At it’s core, OneExtraLap is simple—you create and take quizzes to test your knowledge in a variety of topics much like services such as QuizRocket. What makes OneExtraLap different, however, is its clever integration of social features and it’s simple user interface.

Much like Twitter, the social side of OneExtraLap is driven by allowing users to follow their friends. This, in turn, makes the OneExtraLap homepage a personalized stream of your friends activities on the site. As you create and take quizzes, you earn points and receive badges to compete against your friends to see who’s the smartest. It becomes really addicting!

OneExtraLap’s minimalistic design is another reason the site is so unique. Everything is so intuitive and easy to use. When you first go to the site, you can easily login with your Twitter account and follow all the people using the service that you already follow on Twitter. You then can immediately start challenging your friends

The amazing thing about the internet is that anyone can build something like this; no matter what their age. Stephen built the entire site by himself with no need to build a team, raise venture capital or go through any of the obstacles that used to exist when trying to build a product.

OneExtraLap is Stephen’s first creation and I am impressed. I can’t wait to see what he comes up with in the future. You should definitely keep an eye out for Stephen!

Give OneExtraLap a try and let us know what you think in the comments.

Full Disclosure: I am an unpaid advisor of OneExtraLap. I have provided Stephen with advice over the last several months on how to make OneExtraLap better. I have absolutely no financial interest in the service and my opinions are not influenced by my role as an advisor. Stephen is also a developer for Teens in Tech. He was already working on OneExtraLap when we hired him. He does not write for this blog and his position at the company did not influence this blog post. After all, we’re just teens! :)