Great topic. Very important one. Else, first of all it : as kept me from being totally lonely but you have to be very careful by what you say. I am someone who learned in my family to be very hurt by rejection, criticism and to take things personally. I have cut out at least 60% of my social interaction online. Before my wife left me three and a half months ago I probably cut out 90% of social networking from a year before. As I have h ad to do a lot of ranting lately from being alone, I've subjected myself to a lot of smart alecks out there and have been the brunt of some pretty hurtful comments. One will find much more hurtful comments online because it is easy to rant without being noticed, you can be anonymous and the written word is generally more hurtful.