Multiple Domains and Subfolders

Yep, you need a multi-network plugin.

Just make the original install a subfolder one, then create new networks within.

https://www.ads-software.com/extend/plugins/wp-multi-network/

Tanks Andrea for your quick reply. The plugin you suggested is for 3.0. I have 2.9.2 running with a few plugins installed. So I first have to test the upgrade to 3.0. Or do you know a similar plugin for 2.9.2?

The multi network plugin looks interesting. Can I use it for domain mapping too? Or is it an addition to the domain mapping plugin?

You can map a domain to the new network while you’re setting it up.

And to blow your mind even further, you *could* use the domain mapping plugin to map one of those blogs. If you wanted. ??

So, no you don’t need the domain mapping plugins as well. Unless you want a blog with a TLD with no child blogs.

Thanks Andrea, I will give it a try.