For all of those using adsense on their websites... what have been your findings on what works best as far as what kind of ad units you use and where you place them. Right now I am using mostly the small banner ones right under the headings and then I like to use the small rectangle within the content but close to the top.... Would it be better to leave the banner one out and just use a few rectangle units?? Is it better to have 2 - 3 ad units per page? Or just one?? I use both adsense and affiliate links on my SBI site but have just been wondering if maybe I could tweak some of my adsense ads a bit for better results. If you want to take a peek my site is at Emergency-Survival-Skills.com Thanks in advance!