There are actually two separate discussion points that you raised there.
One is that we keep on saying the word “authoritative”. What do we mean by that? That's a perfectly fair question. It's basically something that informs Google Search, Google News and YouTube as well. We actually have very robust guidelines, about 170 pages of search rater guidelines. We use external search rater pools that evaluate the results that we get to ensure that we're providing results to users in response to queries that are actually relevant to the queries they're looking for and actually from authoritative sources.
By authoritative, we actually rank it based on authoritativeness, expertise and a third classification.... I can send you the information. I'm blanking on it.
It's based on information we get from the search rater guides. As I said, there are pools of them, so as a result it's all done in aggregate, which helps us to surface authoritative information. These are the same signals we use, as I said, to identify this class of information and it tends to weight towards established organizations and so forth that actually do original work. To be clear, we're not evaluating the content of the work. We're just evaluating whether this is a site that's actually expert in the subject that they claim to be.
With respect to the YouTube channel, it's a very different thing. It's a very specific, individualized channel that will be available on YouTube. We did this in the 2015 election. In that instance, we got a third party organization, Storyful, to curate that for us. It isn't done algorithmically; it is actually curated. We will do a similar thing where we will have a third party that will then curate that by pulling in information from various sources.
We will establish with that third party what the guidelines for their inclusion will be, which we will be publishing so people are aware of how information is being included in there. It will be predominantly information on YouTube that is posted by established broadcasters and news organizations that we simply populate into the channel as a singular location for people to see.
All this information would also be available from, for example, the CBC website, National Post and so forth. It would also be available there individually as well.