I am in need of some guidance; I would like to know how I can track/trace IP addresses that click on my Google/Yahoo/MSN sponsored advertising links.
Perhaps a Web Log of some kind. I feel that some of my competition may be clicking away on my Google Adwords, Yahoo, MSN sponsored links costing me quite a bit of monies. I want to BLOCK their IP addresses so that they can not click on my Ads. Can someone please assist me? I have set up Google analytics, but I need to know the IP addresses which click to often.

Thanx,
Davio