Keeping a diary has been found to be "a valuable therapeutic means for relieving emotional distress and promoting well-being." A study asked adolescents to write a blog:
"The field experiment included randomly assigned adolescents, preassessed as having social–emotional difficulties, to 6 groups (26–28 participants in each): Four groups were assigned to blogging (writing about their difficulties or free writing; either open or closed to responses), a group assigned to writing a diary on personal computers, and a no-treatment control group. Participants in the 5 writing groups were instructed to post messages at least twice a week over 10 weeks.... Results showed that participants maintaining a blog significantly improved on all measures. Participants writing about their difficulties in blogs open to responses gained the most."