He has stood against the Liberation Theology Marxists in the Jesuits for over 40 years. That's why the Left blogosphere is ringing with cries of "Fascist!"
As Archbishop, Bergoglio was linked to Comunione e Liberazione, a conservative Church group. The founders of the University branch of C+L were Catholic students at the University of Milan back in the "revolutionary years" of 1968-69 who regularly got beat up by the Marxist student groups. They survived a lot and are real all-around "build a Culture of Life" guys, and of course anti-Marxist.
They are a lay organization but they were founded by a priest, Don Luigi Giussani, who started out just by challenging students: "Jesus Christ: who do YOU say that He is?" Pretty back to basics.
This guy Francis I sounds like a really, really good choice.
We had C&L in our parish in Norman, OK. Some of my friends were involved. It seems like a very positive movement.