Elgg empowers individuals, groups and institutions to create their own fully-featured social network.

Almayer is a fully featured community manager. With Almayer you can share your photos, video, audio, give titles or notes to any media or user, mantain your own list of friends, obtain statistics or charts, mantain a blog, send postcard and so on...

 

 This web site lets people post their environmental cleanup experiences. Whether you go to a beach, to a picnic, or on a hiking trip, think about how to bring some trash back home from the outdoors...

Open Source Social Network for your association , community or alumni written in Ruby On Rails

OneBody is software that helps your community connect on the web. friends, messaging, favorites, Online Directory search, print, connect, Groups incoming and outgoing email, attendance, Membership Management use alone or sync externally, Data Import & Export powerful tools for your data.

Create custom themes and fields. Allow for privacy settings and comments. Videos Photos Music Events Blogs Groups Customization

Jam-packed with useful features and low on bells and whistles, iWiccle is your solution of choice for a versatile Web2 Platform. Intuitive user interfaces combined with state-of-the-art administration, It's the customizable All-in-One internet solution you just can't let go of!

2daybiz Social Community site php script is an online social networking software that allows you to start your own site...

 

 

iSocial is a free social networking CMS software that allows you to create your own Friendster and Orkut like sites. Use bookmarks, dating and create groups with just one mouse click. Start your profitable social networking bussiness now!

spree is an expert search engine where users ask questions to find other participating users, who are knowledgeable in that area and willing to help.

Mahara is an open source e-portfolio system with a flexible display framework. Mahara, meaning 'think' or 'thought' in Te Reo Māori, is user centred environment with a permissions framework that enables different views of an e-portfolio to be easily managed. Mahara also features a weblog, resume builder and social networking system, connecting users and creating online learner communities.

Online Software for developing a custom social networking website for a specific country, company or category...

INCLUDES STORE, trips social network BeWelcome to the first non profit and open source based travel/hospitality network. We, as an international community, set out to develop, run and maintain, BW-Rox, the platform driving

 

 

Digg like clone Script NewsCloud is an open source media platform for citizen journalism. We encourage developers to help us improve the platform - possibly by taking a leadership role in specific feature areas. Documentation