“…However, more recently, there has been an increase in the number and nature of methodologically sound studies examining such interventions. Most of these studies have demonstrated positive outcomes for a variety of psychological and behavioural health issues, such as depressive symptoms/depression (Andersson et al, 2005;Christensen, Griffiths, & Jorm, 2004;Clarke et al, 2005;Robertson, Smith, Castle, & Tannenbaum, 2006;Ruwaard et al, 2009;Spek et al, 2007;Titov et al, 2010;Vernmark et al, 2010), panic disorder (Carlbring, Westling, Ljungstrand, Ekselius & Andersson, 2001; Klein & Richards, 2001;Klein, Richards, & Austin, 2006;Pier et al, 2008;Ruwaard, Broeksteeg, Schrieken, Emmelkamp, & Lange, 2010;Schneider, Mataix-Cols, Marks, & Bachofen, 2003), social anxiety disorder (Andersson et al, 2006;Carlbring, Gunnarsdo´ttir, et al, 2007;Titov, Andrews, Choi, Schwenke, & Mahoney, 2008;Titov, Andrews, & Schwencke, 2008), posttraumatic stress symptoms/disorder Klein et al, 2010;Lange et al, 2003), anxiety prevention (Bennett, Reynolds, Christensen, & Griffiths, 2010;Christensen, Griffiths, et al, 2010;Kenardy, McCafferty, & Rosa, 2003), work-related stress (Ruwaard, Lange, Bouwman, Broeksteeg, & Schrieken, 2007), eating disorders/weight problems (Ljo´tsson, Mitsell, Lundin, Carlbring, & Ghaderi, 2007;Tate, Jackvony, & Wing, 2006;Winzelberg et al, 2000), encopresis (Ritterband et al, 2003), smoking (Swartz, Noell, Schroeder, ...…”