Table 24. Number of articles predicting occupation, with associated predictors and references.

Category (n = no. articles)	Platform (n = no. articles)	References
Social Media (10)	Language (9)	[66,73,87,91,92,209,358,369,370]
	Network Data (3)	[66,358,370]
	Meta-data (5)	[66,209,303,358,370]
Blogs (2)	Language (2)	[209,233]
	Meta-data (1)	[209]
Smartphones (8)	Application Data (6)	[14,177,178,182,188,189]
	Call Data (5)	[14,178,182,188,189]
	Location Data (2)	[183,184]
Websites (1)	Time/Day Data, Website Data (1)	[197]
Forums (1)	Language (1)	[276]