In their weekly back to the basics tip, the Google Analytics blog highlights how to measure landing page effectiveness across multiple keywords using the built in pivot-table feature.
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Go to the Keywords report under Traffic Sources. Look over to the right above the table and you’ll see Views: followed by a set of buttons. Click the Pivot view. Now, look to the left, above the table, and you’ll see a Pivot by dropdown menu. Select Landing Page from this menu. The keywords will be listed down the side and landing pages will be listed across the top. You can now see how many visits you received for each keyword/landing page combination.