Open Source PHP Social Networking Software

Admidio is a free open source user management system for websites of organizations and groups. The system has a flexible role model so that it’s possible to reflect the structure and permissions of your organization. You can create an individual profile for your members by adding or removing fields. Additional to these functions the system contains several modules like member lists, event manager, guestbook, photo album or download area.

Simple, web-based address & phone book, contact manager, organizer. Groups, addresses, e-Mails, phone numbers & birthdays. vCards, LDIF, Excel, iPhone, Gmail & Google-Maps supported. PHP / MySQL based.

POSH is a social PHP widget portal, web-based content and RSS feed reader, customizable and compliant with Netvibes. Usable in an educational, associative or enterprise intranet context.

Social network with matchmaking, with 110,000 users in a year worldwide. The concept aims to completely change the way people meet online. Goodwizz combines Facebook functions (friends, search, chat, photos, profile, etc.), with matchmaking services (matchmaking algorithm), and adds personality games to interact with people online. The differentiation lies 1) The combination of full social network and matchmaking 2) The addition of trying to go beyond first contact with personality games and psychology (personality games made with psychologists enable people who want to discover each other better). The website needs a better design, easier navigation and some better code in some areas. It can be a great alternartive to existing websites and can offer a better way to connect and know people online.