Hi Lesmond,
I have this code below in my article and nothing is showing?

Have I done it right?
<html>
<body>
<script type="text/javascript"><!--
google_ad_client = "pub-6644828315604403";
google_ad_width = 468;
google_ad_height = 60;
google_ad_format = "468x60_as";
google_ad_type = "text";
google_ad_channel = "";
google_color_border = "FFFFFF";
google_color_bg = "CCCCCC";
google_color_link = "000000";
google_color_text = "000000";
google_color_url = "000000";
//-->
</script>
<script type="text/javascript"
src="
http://pagead2.googlesyndication.com/pagead/show_ads.js">
</script>
</body>
</html>