Just a quick note about VOIP: Until Gordon Cook's article at strategy+business, I didn't know that Skype was founded by the creators of Kazaa. But I was glad to see a confirmation of the trend I suspected, of Skype being used by small businesses, as well as a substitute for IM. IMHO, the IM tool in Skype is equally useful for asynch text communication with the ability to just jump on VOIP when extra bandwidth is needed for communication.