What's the word for the feeling when you're online doing something, and you have your gmail open, and you don't necessarily want to initiate contact and yet you yearn - yes, yearn - to hear, however informally, from your list of friends and family all lit up green on your sidebar, and so you manually - yes, manually - set your chat light to a corresponding shade signaling your availability (a rarity!) and yet . . . no one chats with you?

I believe the word is twitter.