i run 3 wordpress sites.
they are each on different installations.
i don't really want to combine them right now because i'm not very proficient technically, with wordpress, but i might want to combine them at a later date, to make it easier to administer.
but i want to check in case it's better to set it up now, because i'm just setting one wordpress site up -- maybe it's better to do this now.
so my question is: at a later date, when i have 3 sites running, each with lots of content on, can i combine them at that time?
or does setting up multisite involve starting things from scratch?