I understand that by simply adding a script to the end of the body tag of a html document one makes it processable by Google analytics. My question is, is this likely to hav
If you add the code to the bottom of the page then it probably won't make much of a difference.
If however, you want it to make no difference then I'd take a look at this link:
http://lyncd.com/2009/03/better-google-analytics-javascript/
It describes the approach that Steve Souders took to completely avoid any kind of I/O block.