Need help finding social networking package.

[Dennis Wicks <wix@mgssub.com>]

Greetings;

I am looking for a social networking package, OS & GPL if 
possible.

Does anyone have a suggestion or two?

I have looked in all the usual places, that I know of 
anyway, and haven't found one that sounds good yet.

I would like one that allows people to set up their own 
groups/forums, sort of like Yahoo groups or MSN and similar.

TIA for any suggestions or pointers to sources.

Dennis