In order to have MobileMe (me.com) host multiple domains you will need to have a basic understanding of how to use domain forwarding. I want to let everyone know upfront that this process may or may not be supported by apple, but it works very well.
For my example I will be using my domain registrar GoDaddy.com, your register may differ bit in the process but for the most part it will be the same.
For this walkthrough I am going to assume that you have not started anything. The first thing you will want to do is register your domains. As I have stated, I use Godaddy.com. If you want to use Go Daddy I would suggest using a coupon code, either GB3 or Todd. These codes don’t help me but they do help podcasters I like to listen to. One you have your domains registered you are ready to get started designing your sites in iWeb. For this example, I am going to use 2 domains I have had for awhile but have never used, Mac101.info and Mac101.org.
After you open iWeb you will need to create your 1st site. For my sites I am going to use 2 very different themes that I have on review the Jumsoft.com’s theme package. For Mac101.info I used the Paradise Bluebird theme (see the screenshot below)
To add the second Site to iWeb, all you need to do is right click in the page area on the left of the program and select “New Site”. For the second MobileMe hosted site I used Mac101.org. I decided to use the Business Bright theme from the Jumsoft.com iWeb theme collection. ( See the screenshot)
Once you have your sites ready to publish, head into the File menu and select “Publish to MobileMe”. The process is pretty straight forward, but it may take some time to complete so go get a soda and come back.
Once the sites are pushed to MobileMe, iWeb will display a message telling you its done. It’s a good idea to use the “Visit Site Now” button on the message. This will give you the information you will need to forward the domain. You will notice it will take you to the first site you setup. For me that was http://web.me.com/promptcs/Paradise_Bluebird/Welcome.html
Now we need to go over to Go Daddy , or your domain registrar. You will need to log into your account and navigate to the domain settings. One you are in the domain settings area click on the domain you are going to forward first. I am going to work on the Paradise site first so I am going to click on the Mac101.info. This is what the screen should look like. ( I have blurred out a lot to protect myself.)
Then you will need to hit the forward button on the top. It will display the box as seen below. You will need to copy and paste the entire http: link that iWeb sent you to earlier. Again for me this is http://web.me.com/promptcs/Paradise_Bluebird/Welcome.html. Then select the “302 Move Permanently ” radio button. Next you will need to click on the masking tab. You may want to enable masking so that your url will show up as your domain not as the url of MobileMe. If you want the tab to read anything special or you want any extra meta date entered then you should enter it here. Once you finish you will need to click “OK”. This forward may take some time to process, it is not immediate, so give it up to an hour before you get nervous. Test it out and you should see your iWeb site. Mac101.info
Now that we have the first domain forwarded we need to get the second domain done. We will need to get the web address for the second site. It is not hard to get at all it is the same as the first with the difference being the Title of the site. My first was Paradise_Bluebird my second site is Business_bright. That would make the web address http://web.me.com/promptcs/Business_Bright/Welcome.html. All I need to do now is follow the instructions all over again. Mac101.org
I hope each of you are able to get this to work with your registrar, if you have any problems leave a comment below so I can try to help you out.
UPDATE: If you are having an issue with your www.yoursite.com not going to the new site then you need to make sure that your www. cname is pointing to the at record or @ in godaddy. if it is not just edit the cname and type @ in the points to area.