There was recently a large trove of google documents leaked, comments linking to them get vanished on most sites (including HN).
They were a mishmash of various things but included e.g. descriptions of various programs and employee activities such as influencing search results to inaccurately reflect the world in the interest of 'justice', e.g. if you search for CEO a neutral search engine mostly men in the results because there are more male CEOs, but a 'fair' search engine would return more women or at least equal numbers. The documents also described google's use of demographically targeting election notices for the benefit of particular candidates (and great consternation with significant number of the targeted demographic voted for the other candidate)... stuff like that. The documents also included lists of penalized news sites which unsurprisingly was largely conservative sites, but wasn't just the more extreme alex jones type stuff.
A lot of it was culled off these internal political lists that the earlier poster was mentioning... so it's probably pretty dubious that many of the things in it actually reflected google company positions. (That said, the 'fairness' and news penalties appear to be active programs and not just smack talk by internal political activists).
More smoke than fire overall, but the more extreme right wing has been promoting it as a pretty substantial bit of evidence of unethical (and in some cases unlawful) conduct by google. Thoughtful discussion of it hasn't been aided by the widespread suppression of the subject.