Your own domain! Your own website! What a great idea.
First you need to register a domain name. Here are two companies which do
this. We use both.
DomainDirect is less money and has great development tools.
NetworkSolutions has been around for years. We have many domains listed with
them.
Now that you haved a domain and a website, you need to monitor the activity.
The easy way is to monitor the access to the site and then analyze the activity. Such as who is visiting, how did they find your site, what are they looking for, etc.
One of the best data analyzers is provided by net applications. Take a look
at 'hitslink'.