* http://forums.egullet.org/index.php?showtopic=26036 - well-written, lots of detail, good illustrations.
* http://www.instructables.com/id/Knife-Sharpening-Tricks/
* http://www.wikihow.com/Sharpen-a-Knife

Several points: Start by not using glass, ceramic, metal, or stone cutting boards - go with wood or plastic. Store knives in a block or with some kind of cover/guard on the blade.