diff --git a/Making-OpenSeadragon-Plugins.md b/Making-OpenSeadragon-Plugins.md
index bd20da2..bf51dc0 100644
--- a/Making-OpenSeadragon-Plugins.md
+++ b/Making-OpenSeadragon-Plugins.md
@@ -1,3 +1,8 @@
 We don't have a formal plugin architecture (though we're open to suggestions on that front). Basically you just create a new JS file that's intended to be loaded after openseadragon.js, and which patches OpenSeadragon in some way or another to enable your functionality.
 
-Once you have created your plugin, link to it from https://github.com/openseadragon/site-build/issues/26 and we'll get it on the directory.
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+Once you have created your plugin, link to it from https://github.com/openseadragon/site-build/issues/26 and we'll get it on the directory.
+
+Tips:
+
+* `OpenSeadragon` is the namespace for all OpenSeadragon properties, classes, and methods. Adding a new top level function could be as simple as `OpenSeadragon.myFunc = function() { ... }`.
+* If you want to add methods to any of OpenSeadragon's classes, add it to the class's prototype, such as `OpenSeadragon.Viewer.prototype.myFunc = function() { ... }`.
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