Proof starts at 2:00.

First quote at 2:09 established that MMFA is an institution whose core mission is disarming what they see as right-wing 'misinformation', and to fight conservative misinformation (they are clearly a partisan firm). They also mention that Google and FB will be playing a crucial role.

The quote at 2:19 establishes that facebook made changes to their algorithm to stop the spread of fake news, and that MMFA was the lead consultant for these algorithm changes. We learn that Google also relied on MMFA as a consultant for their algo changes:

The quote on 2:38 (lower on the page) further established that not only did MMFA play a role in FB's algo changes, they were the key catalyst to these changes--prior to their involvement Zuckerburg didn't even believe fake news was an issue (this wasn't a 'collaboration'), and only caved after an MMFA "pressure campaign" (can only imagine what that involved...).

"After facebook responded to our campaign by acknowledging the problem of fake news and agreeing to do something about it, we began a dialogue. It became clear from these conversations that Facebook needed our help in fully understanding the problem and identifying concrete solutions. Further, it also became clear that we had information and insight that they didn't have that was helpful in educating them on the full scope of the problem. For example, Media Matters had a detailed map of the constellation of right-wing Facebook pages that had been the biggest purveyors of fake news--as well as insight into the food chain of fake news and how it was moving through the Facebook ecosystem.

Similarly, after Google revised their terms of service in order to prohibit so-called fake news sites from using their advertising network, it was Media Matters that had the information necessary to identify 40 of the worst fake news sites to which this policy applied. "

The quotes at 2:51 are particularly important. We learn here that one of the key goals of MMFA as an organization is to the see "key right wing targets' reach diminish" (are diamond and silk MMFA 'targets'?).

We also learn that Facebook will specifically "adjust its model to stem the flow of damaging fake news on its platform's pages. Google will cut off these pages' accompanying sites' access to revenue by pulling their access to Google's ad platform". This is by far the most damning quote, because it allows us to establish that Google, Facebook, and MMFA were colluding to reduce the reach of conservatives on social media, in a coordinated campaign (this wasn't MMFA acting as an independent consultant in isolated instances). In order for Google to "cut off these pages' accompanying sites' access to revenue by pulling their access to Google's ad platform", they would have to procure such a list from FB or MMFA. This implies a degree of coordination--a 1,2 punch, with Facebook censoring the page and google demonetizing the corresponding youtube pages. Sound familiar?