WhitePages will integrate public data from profiles on Facebook and Twitter into its people search service. When you look up a certain person on whitepages.com, in addition to phone numbers and addresses the search will lead you to corresponding Facebook and Twitter pages.
However, this is only a preview of things to come. In 2010 WhitePages plans to add public social media data to existing work and residential listings. In addition, users can add profile links to their listing by taking advantage of the recently introduced editing feature.