The issue of diversity in economic discourse has occupied a prominent place over the past few years. The AEA has had long running initiatives to broaden the diversity of individuals in the economics professions, along gender, racial and ethnic lines, but it’s fair to say they have become much more visible as the debate has waxed: https://www.aeaweb.org/resources/best-practices . The last AEA conference had a panel devoted to the topic of racial diversity (video) . A good summary of the argument for promoting diversity in the economics profession is provided by Janet Yellen. A forceful statement on the economics professions gender diversity problem is here.
What about the EconoBlogosphere (or what remains of it)?