Show me the money The importance of network effects for mobile application business models. - Caren Crowley; Sam Michiels; Wouter Joosen (ICIN, 2012)

User-Rank: Generic Query Optimization for Participatory Social Applications. - Danny Hughes 001; Caren Crowley; Wilfried Daniels; Rafael Bachiller; Wouter Joosen (HICSS, 2014)

Increasing user participation: An exploratory study of querying on the Facebook and Twitter platforms. - Caren Crowley; Wilfried Daniels; Rafael Bachiller; Wouter Joosen; Danny Hughes 001 (First Monday, 2014)