Not a website, but I miss IRC from the early/mid 90's. I managed to discover it via mIRC and spent a lot of time chatting with other kids from around the world

Not a website, but I miss IRC from the early/mid 90's. I managed to discover it via mIRC and spent a lot of time chatting with other kids from around the world (in lieu of face to face communication of course). It exposed me to a lot of things, from programming to the hacker mentality (both white hat and black hat) to just talking to people from different cultures. Well, and seedier things like stolen credit cards, pornography and warez, of course. It was an interesting place then, as hardly anyone in real life was aware what IRC was and online communication was virtually non-existent, but here was this place where people from all over the world could meet in one place and form groups in channels. It still exists now, but I haven't found a channel that has the same stable group feel of like-minded individuals since the mid-2000's. I have less time, there's more distractions on the internet in general and people tend to communicate with those they already know.