What do the dots above the repeated notes in measure 18 mean?

I believe you are talking about staccatos. Unless you could show a picture.

A dot above or below a musical note indicates that you are to play the note staccato.

150 e e e e e e e e e e e e e e ee  e

The answer would be online media like a social media. it does refer to forms of different media content created publicly by the end users since 2005 and would cover how people use social media.hope this would be of .