Table 2.

Types of social media represented

Platform (Number of Articles)
Open social media platforms (# of articles)
Twitter (157)
Facebook (103)
Wiki (57)
LinkedIn (25)
Google+ (15)
Instagram (10)
Flickr (9)
ResearchGate (3)
Reddit (3)
mySpace (2)
Pinterest (2)
Snapchat (1)
Multimedia with ability to interact (# of articles) (e.g., messaging, commenting, correspondence)
Blogs (104)
Podcasts (72)
Video Archival (68) (e.g., YouTube, Vimeo, etc.)
RSS Feeds (4)
iTunesU (1)
Scribd (1)
Direct peer-to-peer contact (# of articles)
WhatsApp (19)
Video Chat (14)
WeChat (7)
Texting (2)
Other closed platforms (# of articles)
Specific closed networks (24) (e.g., Doximity, Moodle, Slack)
Google docs/Collaborative document sharing (7)
Social Bookmarking (7)
Digital Textbook (4)
SlideShare (2)