I’ve been involved further with BzzAgent. The most recent campaign I was invited to was for Smarterer. From their website:
We created Smarterer to provide people a simple, fun, and authentic way to show what they know. Smarterer is a platform designed to score individuals on any and every digital, social, and technical skill under the sun. Using crowdsourced test design and a scoring mechanism similar to the one developed to rank chess masters, in just 10 questions and 60 seconds we can give you a valid score.
So far, it is pretty neat. I am ranked 7th with regards to the BzzAgent test. :D