diff --git a/.gitignore b/.gitignore
new file mode 100644
index 00000000..114db4ee
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,2 @@
+# Explicitly ignore OS X Finder thumbnail files.
+.DS_Store
diff --git a/data/apple-ads b/data/apple-ads
new file mode 100644
index 00000000..30823f91
--- /dev/null
+++ b/data/apple-ads
@@ -0,0 +1 @@
+iadsdk.apple.com @ads