Instant messaging interface having a tear-off element

1. A graphical user interface comprising:

a first element selectable to invoke a first sub-interface that displays first content corresponding to an existing first instant messaging communications session;

a second element selectable to invoke a second sub-interface that displays second content corresponding to an existing second instant messaging communications session;

a general instant messaging user interface within which the first element and the second element are initially presented;

a first selectable component of the first element that is selectable 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

a second selectable component of the second element that is selectable 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.

2. The user interface of claim 1 in which the first and second elements comprise tabs.

3. The user interface of claim 1 in which the first and second elements comprise buttons.

4. The user interface of claim 1 further comprising a status control associated with one or both of the first and second elements, the status control enabling an indication of whether a message in the corresponding instant messaging communications session has been perceived by a user.

5. The user interface of claim 1 further comprising a general interface element configured to enable collective selection of the first and second elements and collective visual separation of the first and second sub-interfaces from other sub-interfaces of the general interface.

6. The user interface of claim 5 in which the general interface element comprises a tab.

7. The user interface of claim 5 in which the general interface element comprises a button.

8. The user interface of claim 5 in which the general interface is configured to enable reattachment of the first and second sub-interfaces to the other sub-interfaces of the general interface.

9. The user interface of claim 1 in which one or both of first and second elements are rendered visually as an integral part of the general instant messaging user interface.

10. The user interface of claim 1 in which one or both of the first and second elements are configured to be separately manipulable.

11. The user interface of claim 1 in which one or both of the first and second elements are configured to be separately removable from the general instant messaging user interface.

12. The user interface of claim 1 in which one or both of the first and second elements are configured to be separately invokable.

13. The user interface of claim 1 in which one or both of the first and second elements are configured to be separately minimizable.

14. The user interface of claim 1 wherein the first and second elements are configured to display information about the corresponding first and second instant messaging sessions.

15. The user interface of claim 1 in which the first sub-interface is movable, by a user, to visually separate the first sub-interface from the general interface and the second sub-interface, and to maintain the first and second sub-interfaces as independent entities.

16. The user interface of claim 15 in which the first sub-interface is moveable, by the user, to reattach the first sub-interface to the general interface.

17. The user interface of claim 1 wherein the existing first instant messaging communications session comprises an instant messaging communications session previously established between a user and a first party.

18. The user interface of claim 17 wherein the existing second instant messaging communications session comprises an instant messaging communications session previously established between a user and a second party.

19. The user interface of claim 1 wherein, prior to changing the position of the first content and the position of the second content, the first and second elements are alternately selectable by a user to enable display of the corresponding first or second sub-interface.

20. The user interface of claim 1 wherein, after changing the position of the first content and the position of the second content, at least a portion of the first sub-interface and at least a portion of the second sub-interface are concurrently perceivable on the graphical user interface.

21. The user interface of claim 1 wherein the general user interface shows a subset of identifiers within a user's buddy list, the subset being defined to include buddies with whom conversations are presently open.

22. The user interface of claim 1 wherein the first and second sub-interfaces are, by a default, integrated into the general instant messaging user interface, and are separable from the general instant messaging user interface upon user manipulation of the first and second selectable components.

23. 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.

24. The computer program of claim 23 in which the first and second elements comprise tabs.

25. The computer program of claim 23 in which the first and second elements comprise buttons.

26. The computer program of claim 23 further comprising instructions for rendering a status control associated with one or both of the first and second elements, the status control enabling an indication of whether a message in the corresponding instant messaging communications session has been perceived by a user.

27. The computer program of claim 23 further comprising instructions for rendering a general interface element configured to enable collective selection of the first and second elements and collective visual separation of the first and second sub-interfaces from other sub-interfaces of the general interface.

28. The computer program of claim 27 in which the general interface element comprises a tab.

29. The computer program of claim 27 in which the general interface element comprises a button.

30. The computer program of claim 27 in which the general interface is configured to enable reattachment of the first and second sub-interfaces to the other sub-interfaces of the general interface.

31. The computer program of claim 23 in which one or both of first and second elements are rendered visually as an integral part of the general instant messaging user interface.

32. The computer program of claim 23 in which one or both of the first and second elements are configured to be separately manipulable.

33. The computer program of claim 23 in which one or both of the first and second elements are configured to be separately removable from the general instant messaging user interface.

34. The computer program of claim 23 in which one or both of the first and second elements are configured to be separately invokable.

35. The computer program of claim 23 in which one or both of the first and second elements are configured to be separately minimizable.

36. The computer program of claim 23 wherein the first and second elements are configured to display information about the corresponding first and second instant messaging sessions.

37. The computer program of claim 23 in which the first sub-interface is movable, by a user, to visually separate the first sub-interface from the general interface and the second sub-interface, and to maintain the first and second sub-interfaces as independent entities.

38. The computer program of claim 37 in which the first sub-interface is moveable by the user to reattach the first sub-interface to the general interface.

39. The computer program of claim 23 wherein the existing first instant messaging communications session comprises an instant messaging communications session previously established between a user and a first party.

40. The computer program of claim 23 wherein the existing second instant messaging communications session comprises an instant messaging communications session previously established between a user and a second party.

41. The computer program of claim 23 wherein, prior to changing the position of the first content and the position of the second content, the first and second elements are alternately selectable by a user to enable display of the corresponding first or second sub-interface.

42. The computer program of claim 23 wherein, after changing the position of the first content and the position of the second content, at least a portion of the first sub-interface and at least a portion of the second sub-interface are concurrently perceivable on the graphical user interface.

43. The computer program of claim 23 wherein the general user interface shows a subset of identifiers within a user's buddy list, the subset being defined to include buddies with whom conversations are presently open.

44. The computer program of claim 23 wherein the first and second sub-interfaces are, by a default, integrated into the general instant messaging user interface, and are separable from the general instant messaging user interface upon user manipulation of the first and second selectable components.