I have several blogs I am working on. I want to keep them in batches. Eg. music & cooking together. Gardening and environment together.
I have a couple of charities I want to support - my host allows me to have unlimited top level domains. Do I do a fresh installation of WPMU for each group, or just the one? One charity has completely different needs to other blogs I am have.
I am fine with single installations - this WPMU I am still a newbie at ... but learning.