79. The computer program product of claim 78 , and further comprising computer code for displaying, in response to a second user interaction, the second additional information associated with the second message, utilizing the at least one window.
79. The computer program product of claim 78 , and further comprising computer code for displaying, in response to a second user interaction, the second additional information associated with the second message, utilizing the at least one window. 86. The computer program product of claim 79 , wherein the computer program product is configured such that the first additional information and the second additional information are displayed utilizing a graphical user interface element of variable size that is determined by a user.