If you do, in situations like PPC ads on search engines like Google, banner ads, or partner promotions, you can go one step further and track the exact source that brought the visitor.
The first step is to begin tracking the value of the code that will be passed through in a query string. This is the extension of the URL that looks like ?source=PPC&ad=Promo12.
To track this, go to the Query Strings tab under Web Profiling, and create a new Query String Parameter to be tracked. All you need to provide in most cases is the name that you are looking for in the query string, and Eloqua will take care of the rest. If you are working with a site that does not use the standard way of separating values with "&" and "=", you can also configure the rules for that setup in this area.
Once this is in place, you are automatically tracking the query string values that appear in each of the URLs your visitors visit, whether the first page in their visit or within a many page visit.