Social City is a popular Facebook application that allows you to create your own virtual city. It was released in 2010 and it was developed by social network application developer, Playdom.
Official Social city forum http://forum.playdom.com/forumdisplay.php?f=73
For The Q&A join us in... : http://www.ngakakngesot.bforum.biz
Walkthrough and tips check out Gamezebo