Ive used a fair amount on chat programs over the years such as MSN, Yahoo, AOL etc. Ive recently signed up and downloaded a new one that some of you may have seen on adverts dotted around the net. Its called IMVU ( http://www.imvu.com ).
Its a 3D chat that looks kinda like the child of The Sims & MSN. You create a 3D Avatar/person and chat to whoever visits your crib, you have your own room too. Its not that much dissimilar to the lobby for Dead or Alive 4.
My profile page is:
http://www.imvu.com/catalog/web_mypage.php?av=Guest_EffEmmGee