Solidarity

No to fascism.
No to race-hatred.
No to Islamophobia and other religion-hatred.
No to the belief that "words don't have consequences" and that therefore free speech comes with no responsibilities.
No to allowing memes of hatred to survive unchallenged in our media and in our conversation.

If there's one thing that you yes YOU can do without getting out from in front of your internet connection, it's to slap down anyone who tries to make Muslims, non-whites, queers or leftists "the Other" who have no rights. (But try to do that without just unleashing hatred against Christians, atheists, conservatives or people who haven't read as many books as you. The "arty queers vs. rednecks" thing is a false dichotomy to stop us embracing the true diversity of our culture and forging unity in that diversity. Ideas are the enemy, not those who hold them.)

ETA: Amanda Knudsen in Norway writes: "I understand that people just want to show solidarity with those killed in the fascist massacre on utøya and in oslo, but please, understand that using the norwegian flag is not an appropriate symbol for this. Our response to the nationalist nazi violence must be openness and internationalism, not to support the nation borders that divide us."