This product allows publishers to earn revenue through ads placed on undeveloped domains.

With AdSense for domains, users can find relevant information rather than see empty pages or “page not found” errors. Today we present ads, links, and search results on the pages, and may add other useful information in the future. To ensure positive user experience and the quality of our network, these sites are monitored for policy compliance and prohibited from using text and images designed to confuse users.

In another word, domain parking can use adsense from now on.