What is the best Social Networking Software that can hold unlimited users?

What do I need to make this Happen.


So far I have been told





PHP 4.3.11


MySql 4.2.26


GD Libraries 2.0.28





Do I need all this, Do I need more. What do I do?

What is the best Social Networking Software that can hold unlimited users?
have you looked into joomla? it's an open source content management system that uses php/mysql.


the limitations on any cms would come from the size of your server space and bandwidth.