I'm a big fan of Elgg, a free and open source social software that allows you to build your own social networks. So it is with great surprise to me that I haven't really covered a lot of news about Elgg here at CMSReport.com. Take a look at a recent post by Dave Tosh for some examples of the latest Elgg powered sites on the Web. If that's not enough for you to judge how well Elgg can run social media sites...than Dave has more examples of Elgg sites to show you.
Elgg 1.5 is the latest version of the software with download links available at the official Elgg site. Hopefully, we'll find more time to cover Elgg in the coming months.
Updated 12/27/2016: Removed borken links. Aricle remains published for historical purposes.