I would have to say Fishland and Club Penguin.
I know lots of websites, Fishland, Club Penguin, Habbo, Smallworlds, Fantage, Zoho, Weeworld, well that's all I remember and if I remember some more I'll get back to you. =)
Xivio.com is great! Its a 3D no download free virtual world!!!
ImVU.COM AND zWINKy.com and well uhhm thats all i know cherio
Try yoville on facebook and myspace. You can create avatars, decorate your own virtual apartment, and talk to friends. Also you can join chatrooms were you can chat or play games.
Facebook or MSN
Some websites that offer free music chat rooms are Chat Avenue, Chat Jungle, and WeirdTown Chat. You can also find free music chat rooms at Userplane and AIM Chat Rooms.
Home4dsi.net is one
Some advantages to using free chat rooms with no registration required include the anonymity of the person who is chatting is secured. The person cannot be identified.
some aim chat rooms are meebo.com and iluvim.com
There are many different chat rooms in the UK that one can use. These chat rooms can be used for various purposes. Some people use these rooms to meet someone else for possibly a future spouse. Others are looking for new friends as well as business opportunities.
There are many websites that hosts free chat rooms online. Some of those websites include http://www.freechatnow.com/, www.chatforfree.org/, and www.planetlivechat.com/.
The internet is full of chat rooms where people can meet others. If one wants to know about the black chat websites, there are several. Black Planet and Afro Introductions are examples of black chat websites.
One can find a number of websites that offer free online chat rooms. Some examples include Pal Talk, Chat-Avenue, Wireclub, Tiny Chat and Free Chat Now. Freecams-exposed.com
Either use AOL, which has heavily moderated chats for teenagers etc., or Justachat.com, which is also heavily moderated and requires that users' ages be stated on entry to adults-only rooms.
MSN chat rooms, there are some people chat both in Chinese and English. On this website:you also can improve your Chinese on the Internet.
The most frequently visited online dating services to supply chat rooms are Spark, Zoosk, and Match. Some integrate their chat through social networks. Some have chat rooms while others provide video chat.
You can try chat roulette many people use this website including celebrities. I think this is one of the best websites for free chat rooms. As far as my know ledege it doesn't cost anything.