A WikiPage is a DiiGoTaggedWikiPage, if it is tagged for the use of the DiigoService.
Note: This wiki page is tagged, as depicted by the bottom line.
DiiGo: http://www.diigo.com/tag/wiki+annotation+DiiGoTaggedWikiPage+DiiGoGoogle:http://google/query?q=wiki+annotation+DiiGoTaggedWikiPage+DiiGo wiki+annotation+DiiGoTaggedWikiPage+DiiGo