diff --git a/README.rst b/README.rst
index 1513444..7265c24 100755
--- a/README.rst
+++ b/README.rst
@@ -154,7 +154,7 @@ Data Challenges
 Economics
 ---------
 
-* `American Economic Ass (AEA) <https://www.aeaweb.org/RFE/toc.php?show=complete>`_
+* `American Economic Association (AEA) <https://www.aeaweb.org/resources/data>`_
 * `EconData from UMD <http://inforumweb.umd.edu/econdata/econdata.html>`_
 * `Economic Freedom of the World Data <http://www.freetheworld.com/datasets_efw.html>`_
 * `Historical MacroEconomc Statistics <http://www.historicalstatistics.org/>`_
@@ -485,6 +485,7 @@ Social Sciences
 * `International Studies Compendium Project <http://www.isacompendium.com/public/>`_
 * `James McGuire Cross National Data <http://jmcguire.faculty.wesleyan.edu/welcome/cross-national-data/>`_
 * `MacroData Guide by Norsk samfunnsvitenskapelig datatjeneste <http://nsd.uib.no>`_
+* `Minnesota Population Center <https://www.ipums.org/>`_
 * `MIT Reality Mining Dataset <http://realitycommons.media.mit.edu/realitymining.html>`_
 * `Open Crime and Policing Data in England, Wales and Northern Ireland <https://data.police.uk/data/>`_
 * `Paul Hensel General International Data Page <http://www.paulhensel.org/dataintl.html>`_