Awesome. Thanks for the follow!

I'm currently doing a series of these technologies on this blog. Some of the ones I highlighted recently also have voice and video, and features like forums. They are also much more decentralized.

My next looks is going to be at OwnCloud and it's fork NextCloud, which are actually pretty similar to Kolab, but no where near as customizable in terms of install for various user base numbers.

After I have exhausted the projects I can find, I plan to do a full comparison and review, but that might be a while ;)