diff --git a/examples/simple-world-program.rkt b/examples/simple-world-program.rkt
new file mode 100644
index 0000000..3405f84
--- /dev/null
+++ b/examples/simple-world-program.rkt
@@ -0,0 +1,9 @@
+#lang planet dyoo/whalesong
+(require (planet dyoo/whalesong/world))
+
+(display "hello again")
+(newline)
+
+(is-color? "red")
+(is-color? "blue")
+(is-color? 42)
\ No newline at end of file
diff --git a/examples/window-size.rkt b/examples/window-size.rkt
new file mode 100644
index 0000000..8475a84
--- /dev/null
+++ b/examples/window-size.rkt
@@ -0,0 +1,7 @@
+#lang planet dyoo/whalesong
+
+(when (in-javascript-context?)
+  (viewport-width))
+
+(when (in-javascript-context?)
+  (viewport-height))