How to track clicks from organic results?

I'm also the #1 sponsored listing on the big 3

[limitup]

Since day one I've been doing tons of PPC advertising, and I am usually either the #1 or #2 sponsored listing for all my keyword phrases on G, Y and MSN.

I'm finally starting to see my site show up in the top 10 in the organic results as well, on all 3 engines, and I would obviously like to be able to track this.

What is the easiest/best way to track clicks from my organic listings?

I use Urchin for web stats but as far as I know it just looks at the domain name on referrals. So if it says I had 500 clicks from Google yesterday that would be from both sponsored and organic listings combined.

[cgrantski]

You have control over the URL used in your PPC ads, and that's what you use to separate your PPC visits from the others. There's really no other reliable way. Your landing pages for your PPC ads need to be marked (by you or by the PPC engine if available; Overture does it but Google doesn't) with a superfluous query parameter, for example?source=adwords or, better yet,?source=adwords&paidterm=whatever+whatever2. I use?adwordsterm=whatever which makes it a little easier to analyze in the stats package I happen to use.

Then filter these out of your reports and examine the referrers of what remains.