1. Android-er. http://android-er.blogspot.ch/2011/03/set-wallpaper-using-wallpapermanager.html. Android-er. http://android-er.blogspot.ch/2011/03/set-wallpaper-using-wallpapermanager.html.
2. Android how-to's. https://sites.google.com/site/androidhowto/how-to-1/display-a-web-page. Android how-to's. https://sites.google.com/site/androidhowto/how-to-1/display-a-web-page.
3. Stack overflow. http://www.stackoverflow.com/. Stack overflow. http://www.stackoverflow.com/.
4. Tutorial for android. http://www.tutorialforandroid.com/2009/01/changing-screen-brightness.html. Tutorial for android. http://www.tutorialforandroid.com/2009/01/changing-screen-brightness.html.
5. Tutorial for android. http://www.tutorialforandroid.com/2009/10/turn-off-turn-on-wifi-in-android-using.html. Tutorial for android. http://www.tutorialforandroid.com/2009/10/turn-off-turn-on-wifi-in-android-using.html.