gistfile1.txt

Mymag.SourceItemView = SC.Checkbox.extend({
     titleBinding: ".parentView.content.label"
});

Mymag.sourceListController = SC.ArrayController.create({
    content: [
        { label: "BBC News", url: "http://www.bbc.co.uk/news/" },
        { label: "Snow forecast", url: "http://www.snow-forecast.com/resorts/Leysin/6day/mid" },
        { label: "XE", url: "http://www.xe.com/" }
    ]
});