diff --git a/extensions/social/hosts b/extensions/social/hosts
index 63da4545e..f522f63bc 100644
--- a/extensions/social/hosts
+++ b/extensions/social/hosts
@@ -1,3 +1,6 @@
+# Social media hosts
+# Updated April 2, 2016
+
 # Facebook
 127.0.0.1 api.ak.facebook.com
 127.0.0.1 api.connect.facebook.com
@@ -115,3 +118,17 @@
 127.0.0.1 vmta13.myspace.com
 127.0.0.1 www.myspace.com
 127.0.0.1 www1.myspace.com
+
+# pinterest
+127.0.0.1 pinterest.com
+127.0.0.1 www.pinterest.com
+127.0.0.1 s-passets-cache-ak0.pinimg.com
+
+# tumblr
+127.0.0.1 tumblr.com
+127.0.0.1 www.tumblr.com
+127.0.0.1 cookiex.ngd.yahoo.com
+127.0.0.1 px.srvcs.tumblr.com
+127.0.0.1 secure.assets.tumblr.com
+127.0.0.1 36.media.tumblr.com
+127.0.0.1 38.media.tumblr.com