search - Pagination - a thing of the past?

This article on pagination left me with mixed feelings.

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  Is pagination always a usability issue?

  
  


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  Should more sites utilise the 'endless page'?

  
  


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  Who's got it right? Twitter? Bing images? Someone else?

  
  
  


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  Is pagination a thing of the past?

  
  

There's commentary on the blog post but I'm interested to know what you folk think.