Do you know that you can  find games on the web 2.0 . This is as good  a place to start  as any - web 2.0  games is a directory  site /blog  that enables  users to make  links  anc comment  on games that have been disigned  using what  could be  described  as "Web 2.0 technology. More broadly the intention here  is to  highlight  games that have been  created  using AJAX or  similar technologies.
http://www.ajaxgames.blogspot.com