The results are interesting, but because it's a correlative study, I think the results are still compatible with internet usage being bad for your well being. P

The results are interesting, but because it's a correlative study, I think the results are still compatible with internet usage being bad for your well being. People might use the internet more when they are feeling better/more sociable, even if the internet tempers that. Similarly, people might avoid the internet when they are feeling low because they can't take it. I'm not convinced that is the case however, I wouldn't be surprised if internet usage actually improved most people's wellbeing, with some notable exceptions (teenage girls, as they mention in the article).