Good to see your efforts with Freedom University. You may be curious to see some of my own. I have an engineering learning wiki at http://econtent.wikispaces.com and an engineering knowledge management blog at http://econtent.typepad.com.
Good luck with your efforts here. I plan to subscribe via RSS>
Thanks Rich for the comments. I plan to look over your links and was thinking along the same lines as you. Good luck to your efforts and will do the same. This online stuff is alot of work but fun...
I actually tested Ning about one year ago ... and moved on to other tools for two reasons. At the time, Ning was having network response issues, which they appear to have fixed (i.e. needed to invest more money in larger server capacity and bandwidth throughput. The other problem is many large corporations ban access to social network sites like Ning. Thus, this employee group can not view Ning content from work. My own employer bans Ning, but I know that this results from a firewall database service to which they respond (i.e. companies decide which kinds of sites to ban, and the service takes over from that point). Obviously the problem is not with sites like yours, but with some of the other uses of Ning.
Thanks for the comments. Although it may be early to tell, so far I've been pleased with the network performance, features and professional appearance of the website. I also created a subdomain at your wiki but have not posted anything yet.