Instagram is by far the most used social media outlet for my age group. Please note the verbiage there—it is the most used social media outlet. Meaning, although the most people are on Facebook, we actually post stuff on Instagram. The content on Instagram is usually of higher quality. People take time to edit their photos with filters, use different brightness/contrast settings (it’s even one of the steps to posting a photo), etc., to make the pictures look the best they possibly can. This means the content on Instagram is normally “better” (photo-wise), so I am more likely to go back to the application. Facebook is often used by us mainly for its group functionality. I know plenty of classmates who only go on Facebook to check the groups they are part of and then quickly log off.
To be honest, a lot of us simply do not understand the point of Twitter. There is always a core group at every school that uses it very religiously to tweet and another group that uses it to simply watch or retweet, but besides that many don’t use it. It also isn’t extremely easy to find friends on the site and many just use it to complain about school in a setting where their parents/family members (not necessarily employers) are likely not to see it. Last but not least Snapchat is quickly becoming the most used social media network, especially with the advent of My Story.