Blekko, a recently founded search engine, has started testing search ads on its SERPs (search engine results page), according to an article published by Search Engine Watch.
Launched by Rick Skrenta in November 2010, Blekko has the backing of Russian search engine, Yandex, as well as a number of venture capitalists.
The site is currently working with a number of large brands via Google and Bing feeds, but according to SEW "doesn't have direct relationships with any confirmed brands as of right now."
The ongoing tests are currently small-scale, rendering the likelihood of PPC marketing campaigns being conducted on the site in the near future highly unlikely.
Skrenta stated that some of the ads are provided in searches linked to slashtags, adding: "We're still ironing out the kinks."
He also stated that Blekko would measure its success based on RPMs - revenue per mille (thousand), estimating that search traffic would be worth between $50 and $100 CPMs (cost per impression).