Google Chart loads extremely small when included in jQuery-based tabs

Rendering charts in a hidden div (which is what the non-selected tabs of a tab UI most likely are) messes with the Visualization API's ability to detect dimensions, so you want to do one of two things: either render all charts before instantiating tabs, or (as you've caught on to) bind event listeners to draw the charts when a tab is first opened. Setting the height and width in the chart's options is insufficient to solve the problem in all browsers.

I scanned over the easytabs documentation, and it looks like you should be able to do something like this:

// draw chart(s) in your default open tab

// track which tabs you've drawn charts in
var chartsDrawn = {
    tab1: true,
    tab2: false,
    tab3: false
    // etc
};

$('#tab-container').bind('easytabs:after', function (e) {
    if (e.tab == 'tab-2' && !chartsDrawn.tab2) {
        // draw chart(s) in tab 2
        chartsDrawn.tab2 = true;
    }
    else if (e.tab == 'tab-3' && !chartsDrawn.tab3) {
        // draw chart(s) in tab 3
        chartsDrawn.tab3 = true;
    }
    // etc
});

change chart options to set the width and height as you need

var options = {
          title: 'Company Performance'
          ,width:900
          ,height:500
        };