ICQ was THE thing a few years ago. It was a handy and fun thingy. The versions of the last years got more and more options and extras. A lot of junk no one needs was added.
Later on MSN, Yahoo, POW WOW, AIM, and so on... gained popularity. ICQ was bought by AOL from the company who originally designed it about 2 - 3 years ago I think. And It's been going downhill ever since.
