Most
e-tailers develop holiday-themed landing pages with a plethora of product info and targeted calls-to-action. And since the engines have to cope with indexing hundreds of thousands of new pages of
content, attaining top rankings becomes more difficult.
So instead of negating all the SEO efforts that go into those pages by killing them, see if you can maintain the links--or at
least redirect users to other sections of the site when the holidays end.
Then, when Christmas rolls around again, you can bring them out of hibernation. "Refreshing the content and prominently linking to it throughout your site's navigation will bring the pages back to life with little or no loss of inbound links--year after year."