More than 26 million people have changed their Facebook picture to a rainbow flag. Here’s why that matters.

Phil Howard was featured in a Washington Post story on digital activism.

“Profile picture campaigns are effective in showing the friends and family in your social network that you have some affinity for a political candidate or cause,” said Philip Howard, a sociologist at the University of Washington and the director of the Digital Activism Research Project. “… Policy changes are not usually the outcome.”

Read the full article here.