New form of corporate spyware (not related to the well-known peripheral company):
In early May, a new on-demand service called Genius is going to launch that will let sales folks rack the performance of their e-mail marketing campaigns by letting them spy on the subsequent online actions of their marks.
The way it will work is that Genius will set up so-called ghost URLs that mirror your company's Website for you to put in your marketing e-mails. So when someone clicks on the URL, everywhere they go and every action they take on the Website is recorded and tied back to their e-mail address.
P.S thanks Leslie