I followed the second example and moved the link unit up to the top of the page above all the blog entries and just below my menu. I tried the link unit on the just like the first example and it did not work very well for me so i removed them. Through my Google AdSense AdLogger logs. I highly recommend AdLogger for your Google AdSense tracking needs. It is free and open source. I bet some of the paid Google AdSense trackers are modified versions of AdLogger.

I might try the 120 x 600 pixel skyscraper ad on the right hand side of this blog. Google allows a maximum of 3 ads on your web sites. I do have 1 more ad to place on my site if I choose to. Some people recommend putting 3 Google AdSense ads on your web site while others do not. Whatever you have read about optmizing your sites for Google AdSense still requires testing to verify if it works positively or negatively on your web site.