Ho to update Taxonomy field values in Sharepoint 2010 using programatically

http://www.endusersharepoint.com/EUSP2010/2010/06/01/understanding-managed-metadata-in-sharepoint-2010-its-impact-on-taxonomy-navigation-and-search-part-1-focusing-on-managed-metadata-term-store-navigation-and-search/

http://blogs.msdn.com/b/sridhara/archive/2010/07/09/update-taxonomy-field-values-in-a-list-item-through-sharepoint-web-services.aspx