A few reactions.
I would shy away from the social media approach. It can create legal issues in some states, and more importantly is a dubious predictor of job performance. Lots of successful people bifurcate work and home. Fun with the old college friends for 5 minutes on Facebook, while still being able to be nose to the grindstone in the office.
As for references, unless I have a prior independent relationship with the person giving the reference I have found them almost useless in predicting success. Sometimes folks are just too nice, sometimes folks are unnecessarily jerks, sometimes folks are natural salespeople, sometimes there are reasons more on the boss than the employee for a departure, but more often than not, different leaders value different skills/styles so what may or may not have worked somewhere else could be different for my place. Where I work, we don't even use them anymore. A company validates resume credentials and that's it.
As for academic transcripts, unless it is an entry-level position in a very technical field and you are looking for the busy dutiful type, but not necessarily the independent thinker, I am not sure they add much. If technical knowledge is necessary, better to determine that for yourself vs some inflated grade done with help from a roommate.