Maybe you are trying to be a high tech grandparent but do you really know how many social networking sites these kids use. I doubt it. Many .
Do away with some of the electronics and Internet access and some of the drama will go away.
When our children become teens they must handle their own problems , you can not do it for them. Allow them to deal with problems themselves. You may not like it but that is life.
If you interfere you are only making matters worse.