I think FB is great for loads of things, keeping up with what's going on, staying in touch with loads of people etc, but the downside is it much surely leave lots of people feeling left out, secluded, not good enough and possibly a whole lot of other emotions.
It seems quite trivial but something as trivial as not getting a like when others do is one example, daft as it seems.
Photographs of friends having nights out when you haven't been invited can be very hurtful, or children going on play dates and your child not invited equally so. What does everyone else think?