Nowadays, you can get TONS of information about a user that comes to your lander.
This site gives a great demo: https://clickclickclick.click
Here as well: http://webkay.robinlinus.com/
A lot of these tracking features can be used cleverly to increase conversions, if you are creative enough.
"A lot of these tracking features can be used cleverly to increase conversions, if you are creative enough."
Could you give a quick example of the top of your head?