Another excellent Cracked article-

7 Reasons The 21st Century Is Making You Miserable

Hint: it's not because you don't spend enough time online...

"When someone speaks to you face-to-face, what percentage of the meaning is actually in the words, as opposed to the body language and tone of voice? Take a guess. It's 7 percent. The other 93 percent is nonverbal, according to studies." ... "That's the crux of the problem. That human ability to absorb the moods of others through that kind of subconscious osmosis is crucial. Kids born without it are considered mentally handicapped. People who have lots of it are called "charismatic" and become movie stars and politicians. It's not what they say; it's this energy they put off that makes us feel good about ourselves. When we're living in Text World, all that is stripped away. There's a weird side effect to it, too: absent a sense of the other person's mood, every line we read gets filtered through our own mood instead. The reason I read my friend's chili message as sarcastic was because I was in an irritable mood. In that state of mind, I was eager to be offended. And worse, if I do enough of my communicating this way, my mood never changes. After all, people keep saying nasty things to me! Of course I'm depressed! It's me against the world!"