Sources on social media may only provide author's username or pseudonym. In this case, include the name that is provided. For sources that posts frequently or have frequent updates, include the time of publication or post.
Example from Twitter
@persiawiki. "We have report of large street battles in east & west of Tehran now - #Iranelection." Twitter, 23 June 2009, 11:15 a.m., twitter.com/persianwiki/status/2298106072. Accessed 26 June. 2009.
Example from YouTube
“Buffy the Vampire Slayer: Unaired Pilots 1996.” YouTube, uploaded by Brian Stowe, 28 Jan. 2012, www.youtube.com/watch?v=WR3J-v7QXXw. Accessed 20 Oct. 2014.
Example of a comment posted on a blog or webpage
Jeane. Comment on "The Reading Brain: Differences between Digital and Print." So Many Books, 25 Apr. 2013, 10:30 p.m., somanybooksblog.com/2013/04/25/the-reading-brain-differences-between-digital-and-print/#comment-83030. Accessed 30 July 2013.