Erm I have quite a few on MSN, most of them I just don't talk too. On MSN I got maybe 30, 40 really depends. I maybe actively talk to 5 or 6, and 8 or 9 occisonally.
AIM I have a few more, about 300 or 400 (i've been just backing, and reusing teh same buddy list for like 4 or 5 years now it adds up)
Not even sure all of them are alive, heh o well, a lot of them i'm sure now have newer accounts, however the ones I truly care to talk too I talk too maybe 5 or 6.