I picked up a book at the Fuller Seminary library this week called The Search to Belong, by Joseph Myers. It's one of these Zondervan emergent books, with the requisite imprimaturs of Brian McLaren and Leonard Sweet and other emergent coolguys, but I still decided to check it out anyway. I'm enjoying it so far, especially as he explodes some of the myths of community that are held so dearly in the church. I, of course, am always sensitive to the word "introvert" and I was happy to read some contrasting stories in Myers book about extroverts who struggle in community and introverts who thrive.
Here is a good quote, from the "More personality=more belonging" myth:
"Introversion and extroversion are learned forms of social behavior [?] that help us navigate our day-to-day lives. They are categories for helping us understand and interpret our relational experiences. But introversion and extroversion neither block nor enhance our experience of belonging. Healthy community can be experienced and developed by introvert and extrovert alike." (p. 17)