I built a community website using most of the Drupal social modules (organic groups, heartbeat, flag, twitter, fboauth, user relationship, user details, user visits, user points, five star, service links, friendly register, private message, comment easy replay, invite, media and more.)
The link for the demo is http://www.community-drupal.alaahaddad.com/. Username: demo || password: demo.
Hi! I have created my first website on drupal! I post many interesting articles about Drupal, CSS3, HTML5, Javascript. You can watch it here http://www.area53.ru