I have several sites and I build most of my clients' websites on Wordpress. It makes sense for most of the sites I build and if I want to give them the reins it is easy to train a client on.
I know Wordpress 3.0 integrated the MU plugin allowing for multiple websites to be run on one platform. Since I have never tried doing this before, I'm curious about the experience others have with it. What are the pros and cons?
Furthermore, when is it appropriate to do multiple sites on a single installation? Seems like the websites I personally run would be good candidates since only I and occasionally another administrator login to the backend. Some of the websites I run for the clients and they don't login to edit anything themselves, so these also might benefit. However, the ones where I give them access to the backend, is it possible to limit them to only modify and access the pages/posts on their own site?