This paper is in the following e-collections/theme issues:

Web-based and Mobile Health Interventions  e-Mental Health and Cyberpsychology 

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Works citing "Feasibility and Effectiveness of a Web-Based Positive Psychology Program for Youth Mental Health: Randomized Controlled Trial"

Vijaya Manicavasagar, Deserae Horswood, Rowan Burckhardt, Alistair Lum, Dusan Hadzi-Pavlovic, Gordon Parker
J Med Internet Res 2014 (Jun 04); 16(6):e140 

According to Crossref, the following articles are citing this article (DOI 10.2196/jmir.3176):

(note that this is only a small subset of citations)

1. Rice SM, Goodall J, Hetrick SE, Parker AG, Gilbertson T, Amminger GP, Davey CG, McGorry PD, Gleeson J, Alvarez-Jimenez M. Online and Social Networking Interventions for the Treatment of Depression in Young People: A Systematic Review. Journal of Medical Internet Research 2014;16(9):e206 [CrossRef]