Some Elgg Powered websites (blog post by Dave Tosh)

Random:

• Classicrods - for classic car enthusiasts.
• Hapas - a community to share your individual stories about the multiracial Asian experience through words, pictures, videos, and collaboration.
• RailRefund - a space for disgruntled commuters.
• The Lab - a network for models and clients.
• Skydiving - a site for German skydivers.
• pbop.de - another German network, not really sure what it is about but it looks fun.
• MaestroZone - connect and share with other musicians in the world.
• theatregig - a free online community that connects theatre people in community, regional, academic and professional theatre – worldwide.
• Chukkest - is the exclusive online social network designed for those who love Polo ponies.

Education:

• c41pt.net - a Social Learning Network for Learning Professionals to discuss the use of social media and social learning.
• uTicked - social bookmarking for teachers.
• Université de Montréal - a Université de Montréal network.
• CMUOnet - a fully functional social networking system, connecting CMUO learners and creating communities of learning.

Professional:

• UnionBook - the social networking site for trade unionists.
• Tickerheads - a space for traders.
• Hedge Fund Community at Hedgehogs.net, a social application platform for the hedge fund & investment community.
• International Process and Performance Institute - learn more about how we help organizations reduces their costs, increase their customer satisfaction, and improve their bottom line.