Inclusion Criteria:  Hong Kong residents with fluency in Cantonese between the ages of 18 and 70 a score of 25 or more on the Chinese version of the Social Phobia Inventory (C-SPIN) (Tsai et al., 2009) have not received any psychological treatment at the time of registration for participation in the project have access to a computer or smartphone with internet connection.  Exclusion Criteria:  being severely depressed, with a score above 30 on the Beck Depression Inventory-II (BDI-II) (Beck, Steer & Brown, 1996) having suicidal ideation in the past three months, with a score of 3 points on Item 9 of the BDI-II.