diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index cbf75dc..447c60a 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -37,7 +37,7 @@ accept your pull requests.
 1. Sign a Contributor License Agreement, if you have not yet done so (see
    details above).
 1. Create your own repo for your app following this naming convention:
-    * mirror-{app-name}-{language or plaform}
+    * mirror-{app-name}-{language or platform}
     * apps: quickstart, photohunt-server, photohunt-client
     * example:  mirror-quickstart-android
     * For multi-language apps, concatenate the primary languages like this:
diff --git a/oauth/handler.py b/oauth/handler.py
index e7dd66b..b366e5e 100644
--- a/oauth/handler.py
+++ b/oauth/handler.py
@@ -96,7 +96,7 @@ def get(self):
     self.redirect('/')
 
   def _perform_post_auth_tasks(self, userid, creds):
-    """Perform commong post authorization tasks.
+    """Perform common post authorization tasks.
 
     Subscribes the service to notifications for the user and add one sharing
     contact.