A more recent study, published by the Center for Applications of Psychological Type Research Services in 1996 sampled 914,219 people and found that 49.3 percent were extroverts and 50.7 percent were introverts.

Solitude matters, and for some people, it's the air they breathe

Love is essential, gregariousness is optional.

The same person who would never raise his hand in a lecture hall of two hundred people might blog to two thousand, or two million, without thinking twice. The same person who finds it difficult to introduce himself to strangers might establish a persence online and then extend these relationships into the real world.

Here's a rule of thumb for networking events: one new honest-to-goodness relationship is worth ten fistfuls of business cards. Rush home afterward and kick back on your sofa. Carve out restorative niches.

Extroversion is an enormously appealing personality style, but we've turned it into an oppressive standard to which most of use feel we must conform. Introversion is now a second-class personality trait, somewhere between a disappointment and a pathology.

...bear in mind that appearance is not reality. Some people act like extroverts, but the effort costs them in energy, authenticity, and even physical health. Others seem aloof or self-contained, but their inner landscapes are rich and full of drama.