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XTM feed now has Wikipedia identifiers
I have configured the WP2TM WordPress plugin to include subject identifiers for each of the tags which have an entry in Wikipedia. This should help with any efforts to link the data in the xtm feed. There still are a lot of gaps though! I might go back and fill in the vendors and other popular tags another day.
Update: The XTM feed is no longer available since the move to Drupal. However, most entities have an identifier now. MW 20090728