As much as I dont like Microsoft products and prefer to run linux operating systems I have to say Msn is fantastic.
till Yahoo = 1st MSN = 2nd Google n Aim with 1 both = 3rd Skype = 0 i should add ICQ instead of skype
Gaim http://gaim.sourceforge.net What does gaim do ? AOL Yahoo MSN IRC ICQ Jabber Gadu-Gadu GroupWise [Novell] Sametime [Lotus] Zephyr I really cant see using anything else ! I've been using gaim for years, love it ! Best of all it's free - no ads, and it's opensource. You can even get a pgp plugin for it, super stuff.
Is it just me or are females and older people over the age of 30 more likely to use Yahoo instant messenger? Think it would be a fun survey to do. I use aim and msn messenger.