I have created 7 sites, one for each department and I will be setting up permissions for certain staff to manage them. What I would like to prevent is everyone clicking up in the right-hand corner on 'MySite' and creating their own personal site. Is there a way to either keep this from happening or hiding the tabs from view

How do you prevent users from creating personal sites?
shengren
You can grant the Personal Site permission to a subset of people in your organization by using one or more security groups. This in effect will allow you to limit who can create a personal site. By default all users have this right.
Michael AS Jones
This is configured in your SSP. Technet has some documentation you can refer to that should help
http://technet2.microsoft.com/Office/en-us/library/21dcf8aa-8a6e-4325-aa17-0188e491361c1033.mspx mfr=true
fgarzonhz
I am unsure where to do this. Do I go to Central Admininstration, Application Management, Applications Security Or, do I set up security from the site collection, site directory
I set up an individual user as a test and put him in a group with read only priviledges and he was still able to create his own site.
ddlam