This module allows user and developers to embed both Google Adwords and Custom javascript conversion tracking codes into a site's pages.
Although it does duplicate some of the features set of the Google Adwords module, it also builds on the it by adding an ability to easily create multiple GA snippets, assign them to pages within the site, along-side custom (non-Google) conversion tracking codes.
This module grew out of a few of my client's needs to have a much more flexible and dynamic ability to deal with many different tracking vendors.
It also adds the ability to set the order of tracking codes embedded in a page and choose if they should be embedded in the header or footer of the page.