Yeah, I don't understand what the site is doing. According to the footer, it's a link-shortening service of some sort, but it's not clear how it's supposed to be used or what is happening after the "human" check.

EDIT: Oh, I see. It's pretty bizarre and I don't know how they make money, but here's what they say:

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ouo.io is a URL shortening service that allows users to get paid whenever they share links and someone clicks.

We pay for ALL legitimate visitor you bring to your links and payout at least $1.5 per 1000 views. Multiple views from the same viewer are also counted thus you will be benefiting from all your traffic.

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Sounds scammy. No thanks.

Sent me off to Panda VPN.