diff --git a/Readme.md b/Readme.md
index 929cadb..844f35b 100644
--- a/Readme.md
+++ b/Readme.md
@@ -8,3 +8,16 @@ A program for managing host file entries.
       hosts add ip hostname
       hosts remove hostname
       hosts list [127.]
+
+## Acknowledgements
+
+Based on prior work by:
+
+- https://github.com/nddrylliog
+  - https://gist.github.com/nddrylliog/1368532
+- https://github.com/dfeyer
+  - https://gist.github.com/dfeyer/1369760
+
+Original idea and interface (since changed) via:
+
+https://github.com/macmade/host-manager
diff --git a/hosts b/hosts
index c3b7681..1d41d56 100755
--- a/hosts
+++ b/hosts
@@ -10,7 +10,18 @@
 #
 # Based on Bash Boilerplate: https://github.com/alphabetum/bash-boilerplate
 #
-# Copyright (c) 2015 William Melody • hi@williammelody.com
+# Based on prior work by:
+#
+# - https://github.com/nddrylliog
+#   - https://gist.github.com/nddrylliog/1368532
+# - https://github.com/dfeyer
+#   - https://gist.github.com/dfeyer/1369760
+#
+# Original idea and interface (since changed) via:
+#
+# https://github.com/macmade/host-manager
+#
+# Updates copyright (c) 2015 William Melody • hi@williammelody.com
 
 ###############################################################################
 # Strict Mode