Twitter/Instagram and Twitter/Instagram/Facebook: In April 2016, Slate announced that Facebook is no longer the social network. Their point was that people are sharing less and less original content on Facebook and instead reposting from other sites.
This is part of the conventional wisdom that Facebook is on the way out as the primary social media platform. A glance at the Google Trends comparison reveals that while searches for Facebook have been steadily declining since Dec. 2012, it is still far outpaces searches for Twitter or Instagram.
In early October 2012, Facebook experienced a steep jump. This coincides with the milestone of 1 billion Facebook users, according to CNNMoney.
Disregarding Facebook as the giant it is, a 5-year comparison reveals that it is possible that Twitter may have also reached its peak — even if it never reached the heights of Facebook.
Twitter peaked around May 2013 and was surpassed by Instagram in Oct. 2015. Instagram is the only one of these social media sites to still show a consistent increase in searches, which seems somewhat odd given that the site is best used through the mobile app (functionality is limited online).
Of course all three of these far outpace the now-dead Vine, which increased very slightly in Oct. 2016 (when Twitter announced it was shutting the site down) but never compared much even to its parent site.