Elgg Spaces is the new offering from Curverider for hosted informal learning applications. I’ve used Elgg a fair bit and like the amalgamation of blogging, social networking and online portfolio applications on one platform. I also like the ability to control the access levels for each entry, so that Elgg can be used for closed group discussions.
Elgg Spaces offers tiered hosting, as well as a free, unsupported version. What I am looking forward to is the ability to “Allow your users to collaborate with those in other communities, both on Elgg Spaces and across the web”. Lack of integration with other systems has been the main reason that I haven’t fully adopted Elgg, even though I still recommend it for individuals or inside a “walled garden”.