In the past, i used to play ICQ (I Seek You) when i went online on my computer. It has a fun community, but unfortunately, a rather heavy client (at that time). I got a lot of friends and most of them were from outside of Indonesia, so it was a good time to practice my English as well.
Unfortunately, that didn't last long. I quit using ICQ after two years and up to now, i never opened my ICQ account anymore. More over, ICQ is only available on Windows, not in Linux, which is the main operating system i'm using right now. I know i can use Pidgin to connect to my ICQ account, but i guess it has so many limitations compared to the official ICQ client.
If you wonder if i still remember my ICQ ID, the answer is YES. Here's my ICQ Profile