Like so many others, I have a facebook account. No shock there, hmm? Also, I play games on it! No shock there either, I guess! The facebook games are small and fun, but most of the time I find that I play them for the same reason I play a hand of cards or participate in the yearly winter games at the department (last day before christmas). I play because I want to connect with the people I play with.
And so I send and receive flowers, I read and do quizzes, I buy and sell friends, I bite and get bitten, and I have a little dragon that occasionally tries to help her friends. Poor little thing, robbed of all gold and dignity, but she still tries!
It's quite amusing, really. This is perhaps the oldest use of games in existance - playing in order to enjoy connecting with others - and it is still a revelation to discover that we do it in yet another medium.