diff --git a/README.md b/README.md
index b3497b69..334dce4e 100644
--- a/README.md
+++ b/README.md
@@ -1,14 +1,19 @@
 MagicMirror
 ===========
 
-##Configuration
+##Introduction
 
 The super magic interface of my personal Magic Mirror. More information about this project can be found on my [blog](http://michaelteeuw.nl/tagged/magicmirror).
 
 Runs as a php script on a web server with basically no external dependencies. Can use socket.io for XBEE integration, but isn't required for basic functionality.
 
+
+##Configuration
+
 Modify js/config.js to change some general variables (language, wather location, compliments, news feed RSS) and calendar.php to add your own ICS calendar
 
+To use the OpenWeatherMap API, you'll need a free API key. Checkout [this blogpost](http://michaelteeuw.nl/post/131504229357/what-happened-to-the-weather) for more information.
+
 ##Code
 
 ###[main.js](js/main.js)
@@ -29,7 +34,7 @@ Takes an array of news feeds (or a single string) from the config file and retri
 
 ###[Time](js/time)
 
-Updates the time on the screen on one second interval (I think).
+Updates the time on the screen on one second interval.
 
 ###[Version](js/version)
 
@@ -37,4 +42,6 @@ Checks the git version and refreshes if a new version has been pulled.
 
 ###[Weather](js/weather)
 
-Takes the user's inserted location, language, unit type, and OpenWeatherMap API key and grabs the five day weather forecast from OpenWeatherMap.
\ No newline at end of file
+Takes the user's inserted location, language, unit type, and OpenWeatherMap API key and grabs the five day weather forecast from OpenWeatherMap. You need to set the API key in the config for this to work. (See *configuration*.)
+
+