Also, it seems that you can only turn off content match for entire campaigns, not for individual ad groups. I find this slightly annoying....
The beginning of the URL is: [pagead2.googlesyndication.com...]
Find it in your logs then examine the entire URL - you will be able to see the URL of the exact content page that your click came from.
Where will my ads appear?
[adwords.google.com...]
AWA