Social network script to be used for a small community (ish)

Hears,

I'm looking to start a site for local higher education students: an informal site with features related to instant chat, Instagram, Facebook, Twitter, etc.

I already had a site using jcow and some other scripts that focused mainly on the topic of fb, but I want something more modern, just things about the last things that are happening, etc.

Is there something like this available?

Thank you