I think IM (Instant Messengers) are great business tool, it facilitates quick and efficient communication but it can also take over your time, people you do not necessary want to talk to can contact you when they see that you are online. For this reason I do not login to IM by default any more, you need to request my presence on IM if you want to chat to me and I deliberately use obscured IM such as ICQ to keep people on my contact list to a minimum, how do you use IM, what do you think of it? Please vote.