Need to know how to get somewhere or which public transportation to use? This webpage has information about the metro, buses, and the commuter rail so you can find the best way to reach your destination.
http://www.ctm-madrid.es/

What will the weather be like today?
http://www.tutiempo.net/Tiempo-Madrid-E28001.html

What museums, churches, and monuments can I see in Madrid?
http://www.madridhistorico.com/seccion6_plano/index_plano.php

If you want more information about Madrid:
http://www.esmadrid.com/es/portal.do