In my scenario I would like to have domain aliases pointing to same site and content as well as same database.  My question is related to personalization.  Lets say I have site1.com which is main site and on the default page I have a picture of the owner of this domain and a some contact information.  Now I want to use a domain alias to point to this main site let's call it site2.com but on the default page I want the picture and contact information to change to reflect the owner of this domain.  All other content will be the same with the exception of my contact form which should now use the owner of the domains email address.

Is this a possibility?

Thank you so much for your time and responses.
jon

Thank you Joe for the response.  I was thinking I would definitely need to write something and have begun creating my projects folder and project in mojoportal by following the developer videos, they are great.

Here is my scenario, can someone let me know if you think this is an okay way to do this.
I have a main site and will offer the exact same site to other folks (lets say agents) after we purchase a new domain name for them.  This new domain will be a domain alias that will redirect to the main site.  All new agents sites will contain all of the exact same content with the exception of the following.

Default page will have some right side content which will be a picture of the owner of this particular domain and their name, address etc...
My thought is to read the header information to see which URL was redirected to the main page, lookup in table and get the user information to be displayed in this right side content piece

I will have a new Contact form submission page which will also get information based off of which URL was redirected and take the email address for the owner of the site to be used as the email address the contact form will be sent to.

I think this will be okay but does anyone have a better solution or think that this may cause an issue once my number of sites that gets redirected grows and it looks as though it will grow quickly. 

I am not opposed to multiple sites I just don't know if I need it since the content will for the most part all be the same and am having trouble figuring out how I would set it up so that if the main site is updated then the child sites get updated as well.

any help here is greatly appreciated.
thanks
jon

Thank you for the reply, this answers my question. 

Please enjoy your St. Pattys Day beer that was just sent your way!!

Jon