Sharepoint 2010 Mutiple website on IIS
I installed a SharePoint on single machine with Active directory. The domain name is xxx.com. I then created a SharePoint site with default port as 80. I can now access this SharePoint site by typing in http://xxx.com. Now I would like to create 2 more websites which I would like to call as http://intranet.xxx.com and http://extranet.xxx.com. How can I accomplish this ...??

I am using windows 2008 R2 and SharePoint 2010 Enterprise edition. Greatly appreciate if you could direct me to any useful resources.

Thanks in advance...
Sharepoint 2010 Mutiple website on IIS
===

I installed a SharePoint on single machine with Active directory. The domain name is xxx.com. I then created a SharePoint site with default port as 80. I can now access this SharePoint site by typing in http://xxx.com. Now I would like to create 2 more websites which I would like to call as http://intranet.xxx.com and http://extranet.xxx.com. How can I accomplish this ...??

I am using windows 2008 R2 and SharePoint 2010 Enterprise edition. Greatly appreciate if you could direct me to any useful resources.

Thanks in advance...