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Robert_Charlton - 6:53 pm on Sep 18, 2009 (gmt 0)
Perhaps old news by now, but worth noting, and the site is a standard enough source that we can mention it specifically.... Internet Movie Database has also regularly been showing page fragment sitelinks on searches for movie actors, directors, writers, producers, etc. People with multi-faceted careers show more identifiers, and there seems to be a certain threshold of activity needed before the identifiers kick in. imdb and Wikipedia are often 1 and 2 in such searches.
If anyone spots page fragment sitelinks for any place other than Wikipedia, that would be interesting news.