With some friends, I am thinking about setting up a social network site (thus weaning people away from FB etc.) and for the moment am looking at Elgg
. It seems to be the most promising, has many plugins and a thriving community, also it's open source and doesn't seem too
complicated (I do have quite some experience with Drupal - would you believe).
But I' d like to hear from DC'ers with other ideas and suggestions.