IM

Intermodulation, Intramuscular, Ice Maker, Identity Management, Impact Memorandum, Implementation Memo, Important Message, Impossible Mission, Impulse Modulation, Impurity Stimulation, Income Maintenance, Incoming Message, Index Medicus, Individual Membership, Industrial Manufacturing, Infectious Mononucleosis, Information Management, Oh! INSTANT MESSAGING! I started doing that years ago, through Hotmail, with a young friend who lives in Tel-Aviv. More recently, I used Google Talk to chat with a couple of colleagues at SPL.