Instant messaging interface having a tear-off element

A computer program, stored on a computer readable medium, comprising instructions for:

• rendering a first element selectable to invoke a first sub-interface that displays first content corresponding to an existing first instant messaging communications session;
• rendering a second element selectable to invoke a second sub-interface that displays second content corresponding to an existing second instant messaging communications session;
• rendering a general instant messaging user interface within which the first element and the second element are initially rendered;
• receiving a user selection of a first selectable component of the first element to change a position of the first content relative to a position of the general instant messaging user interface and relative to a position of the second element;
• and
• receiving a user selection of a second selectable component of the second element to change a position of the second content relative to the position of the general instant messaging user interface and relative to a position of the first element.