One suggestion for every guy. Go read as much as you can of #YesAllWomen over at Twitter.
This is especially for those guys who's first thoughts on reading about the murders in Santa Barbara was to go on defense to downplay, deflect or deny the inherent misogyny of these murders. For those guys who following a link to OllieGarkey's diary felt the need to explain and defend "Men's Rights". For those guys who felt the need to chastise those who expressed anger at the murderer and who felt no need to try and understand or feel empathy for his plight.
Just read.
Take it in.
See how far you can get.
Don't start a debate (internal or otherwise).
Just read.
Update: What Feminist Hulk says
Update: Also too. Some of the best of #yesallwomen