I have 3 web sites. They are all on separate hosting accounts. Can I manage the analytics with one Google account? I seem to recall reading about setting up multiple profiles, with one tied to a domain or something like this. Basically, I want one login or set of credentials to gain access to all google analytic information, configuring reports etc.
Yes you can. I've got 6 sites together under one login. On the first page when you login to analytics you should have the option to add a website profile (bottom left) from there you can either add a profile for a new domain or an existing one
You can manage multiple website analytics from one set of credentials. Also, if you are the admin, you have a choice to give rights (user or admin) of either 1-2 websites or all of them to others as per requirements.