Here is an interview of Andrea Horwath where she identifies as a socialist and explicitly calls for a rejection of the Third Way approach.
http://www.tvo.org/cfmx/tvoorg/theagenda/index.cfm?page_id=7&bpn=779503&...
And following that, there is an interview with socialist scholar Leo Panitch where there is some critique of Horwath's approach and is interesting but my guess will be far less popular around here.