the present invention. [0013]FIG. 3 shows an instant messaging window in accordance with aspects of the present invention. [0014]FIG. 4 shows a network topology in accordance with aspects of the present invention. [0015]FIGS. 5A and 5B show various communication signals in networks in accordance with aspects of the present invention. [0016]FIG. 6 shows a network including servers and separate aut