huffpo, NYT, MSNBCBSNPR, LAT, polico -- hell 90% of the interwebz and all media are left wing. But err America pointed out your problem: leftist ideas cannot win by themselves in the marketplace of ideas. They can only exist in echo chambers when all other ideas have been removed.
Media Matters, Think Progress, Mensch, Taylor, RawStory, TruthOut, more loony-toony skews outlets than I can think of.