This is part of a series of weekly posts with the most interesting content from the Open Borders Action Group on Facebook. Do join the group to weigh in on existing discussions or start your own (you might want to read this post before joining).

Thought-provoking general questions or general observations

• Post by Vipul Naik linking to available draft chapters of a book on migration edited by Ben Powell, featuring a chapter by Bryan Caplan and Vipul Naik, a chapter by Zac Gochenour, and a chapter by Alex Nowrasteh.
• What are some changes other than open borders for which the impact on GDP has been estimated, and how does it compare to the estimates for open borders? by Pablo Stafforini, June 26, 2014. 1 like, 3 comments.
• Bleg for estimates on impact to US GDP if the US were to open its borders unilaterally by Drew Stonebraker, June 29, 2014. 1 like, 2 comments.
• Technocratic versus civil rights/human rights/natural rights approach to open borders by Vipul Naik, June 23, 2014. 3 likes, 9 comments.
• What are some places where people’s personal and political attitudes to migration are most different? by Vipul Naik, June 23, 2014. 2 comments.
• Post by Vipul Naik, June 27, 2014, linking to a comment on an Open Borders post. 7 comments.
• Post by John Lee, June 26, 2014, linking to The Global Welfare and Poverty Effects of Rich Nation Immigration Barriers by Scott Bradford. 4 comments.
• Post by Michelangelo Landgrave, June 27, 2014, asking people if they’ve read Borjas’s recent book Immigration Economics, and what they think of it.
• Post by Justin Merrill, June 26, 2014, linking to The optimal immigration policy – just open the borders by Lars Christensen, June 26, 2014.
• Post by Pablo Fabrizio linking to his own article Nationalism gets corner kick, The Barrie Examiner, June 25, 2014. 2 likes, 1 comment.

Discussions of specific historical and current situations

• How did Taishan-American migration become so big? by Carl Shulman, June 24, 2014. 2 likes, 3 comments.
• Post by Edouard Hesse, June 28, 2014, linking to Anti-immigrant sentiment is down in the United States — way down by Aaron Blake, Washington Post, June 27, 2014.
• Post by Vipul Naik, June 28, 2014, linking to the article Immigration reformers’ favorite spin on the child migrant crisis is dead wrong by Dara Lind, Vox.com, June 27, 2014. 4 likes.
• Post by Vipul Naik, June 26, 2014, linking to Gov’t Confirms Authenticity of Contract Request for ‘Escort Services for Unaccompanied Alien Children’ at the Border, Sara Carter, The Blaze, June 20, 2014. 4 comments.
• Post by Rob James, June 26, 2014, linking to Brat’s Immigration Stance Doesn’t Square with His Free-Market Flair by Alex Nowrasteh (originally in The Hill), June 11, 2014. 1 like, 2 comments.
• Post by Chris Keam, June 26, 2014, linking to Why not use refugees to solve our Temporary Foreign Worker problem? by Howard Adelman, Naomi Albiom and Mike Molloy, The Globe and Mail, June 26, 2014.

Outreach and meta

• Should Open Borders expand its presence to Pinterest and Tumblr? by Vipul Naik, June 25, 2014. 4 likes, 24 comments.
• Excel file by Vipul Naik giving like, comment, and share data for all Open Borders posts and pages.
• Post by Vipul Naik, June 26, 2014, asking about possible projects to apply data science or machine learning ideas to the study of open borders or open borders advocacy. 2 likes, 5 comments.
• Have people noticed the reduced posting frequency on the Open Borders site? by Vipul Naik, June 25, 2014. 4 likes.
• Post by Vipul Naik, June 25, 2014, noting that the Open Borders page on Friedman’s views on immigration and the welfare state got linked from the Mark Levin show. 3 likes, 5 comments.