This topic seems actually quite controversial. Google answered the question by what could be taken as a denial. But their answer was kind of open to interpretations. And on the other hand, there are studies (one of them from Moz) that showed linking out has an impact. So, how can you be so assertive? Is it something that comes out from your own experiments?
Second thing, optimizing across additional platforms. So we've looked and YouTube and Google Images account for about half of the overall volume that goes to Google web search. So between these two platforms, you've got a significant amount of additional traffic that you can optimize for. Images has actually gotten less aggressive. Right now they've taken away the "view image directly" link so that more people are visiting websites via Google Images. YouTube, obviously, this is a great place to build brand affinity, to build awareness, to create demand, this kind of demand generation to get your content in front of people. So these two are great platforms for that.
Search engine marketing is the practice of marketing a business using paid advertisements that appear on search engine results pages (or SERPs). Advertisers bid on keywords that users of services such as Google and Bing might enter when looking for certain products or services, which gives the advertiser the opportunity for their ads to appear alongside results for those search queries.
Now, it is not that these sites are not interested in Google users. In fact, they have hired us to help them increase their share. However, they are getting so much traffic from sites like Facebook that it seems there is less urgency about attracting this traffic and less willingness to change the site to meet organic standards. Not long ago, sites would urgently and unquestioningly abide by Google’s standards to court that traffic.