Digiday: Google is testing promoted video ads in search results, a format that could bring more brand dollars to marketing there, according to a number of sources familiar with the company’s product road map. The search video ads are in a limited test right now and have come up in discussions between Google and the ad industry, according to these sources. The video ads would be the next step in Google’s evolution of search advertising, which started as simple links but increasingly include photos and other media formats.