What is associated with: 3 letter sounding like 3 word name of an instant messaging program introduced in november 1996?

What is associated with: 3 letter nickname used by the man who assisted wyatt earp in tombstone arizona in 1880? Based on the clue '3 letter opposite of con or amateur', what is the answer? What is referred to by '3 letter para paramedic'? Based on the clue '3 letter slang for a pleasing physique', what is the answer? Based on the clue '3 letter suffix meaning an incomplete resemblance ...', what is the answer? Based on the clue '3 letter suffix used to form chemical terms esp na...', what is the answer? Based on the clue '3 letter synonym for caviar', what is the answer? Based on the clue '3 letter synonym for piggery a place where pigs ar...', what is the answer?