track affiliate link button clicks

Hi

is it possible to track the clicks of affiliate link products, so as to gain stats in google analytics as to what product has sent traffic onto a affiliates page, basiacally I have each product page setup with amazon affiliate links on the “buy” button, but at the moment have no real clue as to what page is making me sales with amazon.

any help would be appreciated, can see here http://www.watches-pohs.co.uk

http://wordpress.org/extend/plugins/woocommerce/