Can anyone explain why the original blogspot post ( <a href="http://adsense.blogspot.com/2009/02/six-ways-to-experiment-with-adsense-and.html" rel="nofollow">http://adsense.blogspot.com/2009/02/six-ways-to-experiment-w...</a> ) links only to "invis.gif 1x1 pixels" ? I've been rechecking this url over past 12 hours with this same result.<p>Is this a hacking of blogspot? or something that happens there when a blogspot blog goes bad. Actually I note that the home blog page (<a href="http://adsense.blogspot.com/" rel="nofollow">http://adsense.blogspot.com/</a>) also goes only to that .gif - odd, since surely this is a Google-developed blog, isn't it?